Applications

Nowadays electronics are omnipresent. Sometimes, to complete a task, just a smart, compact component is missing.
In those cases a small enterprise can provide a fast and cost effective solution.
On this page we provide a selection of solutions that were developed over the years.




Zirconium CubeAutosampler
PCR-ControllerFast PCR-Thermocycler
Spectrometer340..850nm Spectrometer
LiIon Cell TesterHigh Precision Coulometry LiIon Cell Tester
ALDSPortable Medical Diagnostics System
PMA302010Mechanical Test Adapter
TQ412_melodySubminiature Melody Generator
EMI PreAmpEMI Wide-Band Pre-Amplifier
EMI Filter TestEMI Filter Test Boards
WLAN2UARTSerial-to-WiFi - Converter Platform
BLEsensorBluetooth Low Energy Sensor
SSI_USB_DUOConverter Platform
SSI_USBConverter Platform
L&S-Modulelight- and sound-module with motion sensor
Digital IODigital IO-Module
Loadcell ADCLoad Cell Data Converter
Stegano E200Data Collector with Ethernet
Stegano P100Data Collector with Ethernet
ASi-XceiverSeriell-to-AS-i - Bridge
SSI_TOOL1Converter Platform with FPGA
allTimerCustomer Specific Timer
TECLABDisplay Controller for Lab Instruments
ZirconiumControl Equipment for HPLC Analyser Pumps
HotDog5090Digital Temperature Controller for HPLC Column Oven
RFID_baseCompact RFID Base Station
TQ10_melodySubminiature Melody Generator
xmasball2012Floating Christmas Ball 2012
CentiPadEmbedded Linux Module
USS1701Ultrasonic Gas Flow Sensor
RS422splitterRS422 Encoder Splitter/Repeater
ShutterDigital Speed Control for Shutter Motor
MAHPONGMAHPONG TV-Tennis



ZCube.jpg Zirconium Cube Autosampler

  • application in High-Pressure-Liquid-Chromatography (HPLC) and Micro LC
  • a Zirconium System - product
    • 2 or 6 sample racks
    • Peltier cooling of sample chamber
    • innovative cleaning system
    • user friendly software
  • presented at ASMS 2021 in Philadelphia
  • development of electronics- and firmware by HAREROD
  • electronics
    • motor controller for positioning and sample handling
    • control of integrated cleaning system
    • sample cooling
    • 4 wide-range digital-inputs (5V..24V, up/down biased), 4 wide-range output-contacts (48V 250mA)
    • RS-232 and Ethernet software control interfaces
  • firmware
    • RTOS realtime operating system with dedicated thread for each sub-system (freeRTOS on STM32F4)
      • proprietary multithread XML script interpreter for flexible processing of injection methodes
      • RS-232 and Ethernet firmware control interfaces for device control and file transfer
      • sample chamber temperature control
      • XY-Z-injection-needle positionierung
      • control of integrated cleaning system, incl. washpumps and -valves
      • control of integrated dilutor piston
      • control of internal and external injection valves
    • bootloader for encrypted, automatic firmware updates
    • wear-leveling flash-filesystem for long field operating times (>10 years)
    • automatic error correction class A typical, class B worst-case (e.g. after supply failure)
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Fast PCR-Thermocycler

BioScipeNP_1080.jpg BioScipeX_1080.jpg This control unit for a high-speed PCR-thermocycler was designed while in lockdown early into the Covid19 pandemic. The core feature of the device is a disposable sample cartridge. In contrast to the well-known antigen quick-tests, this unit is based on the Polymerase Chain Reaction (PCR), which is designed to detect genetic footprints, in this application of the Covid19 virus, with high precision and sensitivity.
PCR-analysis requires two technical features:
  • To trigger the chemical process, two different temperatures (e.g. 55°C / 96°C) must be cycled.
  • The 520nm secondary emissions of the dye SYBR Green I must be separated from the background of a 497nm lightsource.
Within a few weeks a control unit and a sensor unit came into existence.
  • Hardware
    • Sensor Unit
      • PMW lightsource 497nm
      • Edmund Optics Bandpass 520±2nm
      • Analog Frontend for Hamamatsu Sensor
    • Peltier-/TEC Driver 12V 6A
    • Heater Driver 12V 3,5A
    • Fan Driver 12V PWM
    • Supply 12V 10A
    • 1x Thermocouple Input
    • 2x 1wire Temperature Sensor DS18B20
    • Digital Inputs internal
    • Main Controller STM32F4 with freeRTOS
    • WiFi-/BLE-Interface ESP32
    • USB
    • 3x Wide Range Digital Inputs 5V/12V external
    • 2x Opto Coupler Outputs 60V 600mA, 1500V Insulation
    • internal Control Data Memory
    • internal Diagnosis
    • Protection against operator error
    • Protection against EMI
    • Main PCB: 90mm x 96mm
  • Firmware
    • Base Firmware for Testing
    • Drivers for Peripherals' Control
    • Production Firmware STM32/ESP32
    • XML-based arbitrary Sequencer
    • Web Interface
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Spectrometer

Spektrometer_LEE2.jpg Spektrometer_LEE.jpg Spektrometer_PCB.jpg
The work on the PCR-Thermocycler established a valuable contact to Hamamatsu Germany. This led to the procurement of a mini-spectrometer module for internal lab test use. Upon request, Hamamatsu provided original calibration data from their Japanese manufacturing.
The picture shows measurements on light sources with a provisionally working spectrometer. Later on the PCB was further populated and operates now as a bus-powered USB device.
  • Hardware
    • Sensor unit
      • Hamamatsu C12880MA
      • CMOS Linear Sensor with 288 Pixels
      • Spektral Range: 340..850nm
    • Sensor interface with pixel clock generator, signal puffer and 16bit 1MSPS ADC AD7980
    • USB bus-powered
    • UART Interface
    • User Button
    • 4x dimmable white illumation LED's
    • 2x Digital Inputs
    • Microcontroller STM32F4
    • Case: Hammond 1591XXLS 83mm x 54mm x 39mm
  • Firmware
    • production firmware
    • drivers for peripheral control
    • USB-VCOM host interface
  • Windows Software
    • Sensor setup, Calibration, Autoscaling
    • Investigation of Emission- and Absorption-Spectra
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LiIonTester_2x20_1080.jpg High Precision Coulometry LiIon Cell Tester

  • Test device for LiIon Cell development in the automotive industry. Coulometric testing allows assessment of a cell's efficiency and ageing process over a wide range of application scenarios.
    The picture shows the first 2-channel prototype. Within the same project Harerod provided designs for additional devices, e.g. TEC Cooler Controllers and Auxiliary Sensor Channels.
  • Outline
    • Single LiIon-cell channel
      • Cell Voltage 0 .. 4.2V
      • Cell Current -20 .. +20A
      • Cell Temperature
      • 2x ADC 24bit AD7175-8
      • DAC 16bit AD5676
      • Reference Source LTC6655
      • Noisefree Resolution Voltage Measurement > 18.5bit
      • Noisefree Resolution Current Measurement > 17.6bit
      • Short Term Stability Current Control < 5ppm (100µA/20A)
      • Protection against operator error
      • Protection against EMI
    • Supply 5.5 .. 7.0V 40A
    • 2x RS485-Bus
    • USB
    • 2x Opto Coupler Outputs 60V 600mA, 1500V Insulation
    • Status/Diagnosis LCD Interface
    • 2MB internal Data Memory
    • SDcard Interface
    • Internal Diagnosis
    • Microcontroller STM32F4
  • Firmware
    • Base Firmware for Testing
    • Drivers for Peripherals' Control
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Portable Medical Diagnostics System

alds-workflow-main-page-en-1-1536x886.png
  • Portable Lung-function Diagnostic Device
  • A Lothar MedTec - product
  • Portable measurement system for lung diagnostics, comprising of a signal generator unit and a sensor unit.
  • application interface signal generator unit
    • ARM Cortex MCU for complex signal generation
    • WiFi-/BLE-host communication
    • energy- and standby-management
      • capable of long ready storage durations due to less than <10μA quiescent current during deep sleep
    • Interfaces
      • WiFi-/Bluetooth-connection to host application
      • 2x Duo-LED
      • 1x key connector
      • power stage
    • Supply
      • Li-Ion-accumulator cell pack
      • 5V USB charging system and pack manager
  • application interface sensor unit
    • WiFi-/BLE-host communication
    • energy- and standby-management
      • capable of long ready storage durations due to less than <2μA quiescent current during deep sleep
    • interface
      • WiFi-/Bluetooth-connection to host application.
      • Duo-LEDs
      • transducers
    • supply
      • Li-Ion-accumulator cell
      • 5V USB charging system and pack manager
  • dimensions
    • divers PCBs between 20mm x 30mm and 130mm x 130mm, taylored towards mechanical design requirements
  • scope of work
    • hardware development
    • firmware framework development / driver energy management
    • support firmware development WiFi-/BLE-controller
    • development commissioning concept incl. programming adapter
    • manufacturing management of functional model
    • accredition preparation electrical part, DIN EN 60601-1-2
    • support accredition tests electrical part, DIN EN 60601-1-2
      • electrical safety
      • safety Li-Ion-battery
      • electromagnetic compatibility, EN 60601-1-2:2015
      • ETSI EN 301 489-1 V2.2.0 (2017-03) / ETSI EN 301 489-17 V3.2.0 (2017-03)
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zirconium.png Control Equipment for HPLC Analyser Pumps

  • application in High Pressure Liquid Chromatography (HPLC)
  • development of the electronics hardware
  • support of low level firmware development
    • integrated controller for external column heater
    • 4 wide range digital inputs (5V..24V, up/down biased), 4 wide range digital output contacts (48V 250mA), 2 switched 24V power outputs
    • RS-232, USB, and Ethernet switch (TCP/IP) software control interfaces
  • EMC design of overall system
    • fitting circuit and layout
    • selection of components, for example, power supply unit
    • EMC compatible chassis optimization
    • supervision/performance of EMI-tests
    • supervision-/preparation UL/CSA/ETL-certification (electric/safety)
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Digital Temperature Controller for HPLC Column Oven ./pics/hotdog_150.jpg

  • application in the High Pressure Liquid Chromatography (HPLC)
  • exact digital temperature control for highest reproducability of measurement results
  • cost optimized design based on Atmel AVR ATmega1284
  • communication via RS232 and Ethernet
  • development of the electronics hardware
  • support of low level firmware development
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PMA302010 - Mechanical Test Adapter

./pics/PMA302010_back_320.jpg    ./pics/PMA302010_320.jpg
  • universal mechanical test adapter, adjustable to different devices under test
  • the fitting test device for professional quality control of your devices
  • design of the baseplate during the hardware design process, directly from device under test CAD data
  • transparent pricing - 50-65% typ. savings compared to third party suppliers
    • exchangeable base plate
    • leading, spring loaded guide pins
    • spring loaded contact pins
    • adjustable downholders
    • plastic adjustment screws for optimum downholder force
    • device under test specific electronics interface
  • technical data of standard adaptor (other dimensions available)
    • footprint (B x T): 300mm x 200mm
    • height: 100mm (w/out downholders)
    • usable area: 255mm x 155mm
    • mass: 2.5kg
    • baseplate thickness: 10mm
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Subminiature Melody Generator


tq10_melodie.jpg        TQ412_PCB.jpg TQ412_BOT_320.jpg TQ412_TOP_320.jpg
  • subminiature tone generator
    • melody memory for 600 notes
    • sensor input for e.g.
      • switch
      • light sensor
      • magnet sensor
    • Class-D-amplifier
      • 2.8W into 4 Ohm
      • 1.7W into 8 Ohm
    • Ultra-Low-Power
      • standby current below 1 µA
      • standby time at CR2032 several years
      • operating current ca. 4 mA plus speaker current
  • microcontroller ATtiny412
    • SOIC8 package
    • 4 kByte Flash
    • 256 Byte SRAM
    • 20 MHz
  • PCB
    • 16.5mm diameter
    • 2 layers, single sided SMD
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20dBm Wide-Band EMI Pre-Amplifier

./pics/HFA1_300.jpg
  • HF-pre-amplifier with adjustable frequency response
  • SMA female connectors
  • cascadable 50Ω inputs/outputs
  • applications
    • EMI probe pre-amplifier
    • spectrum-analyzer tracking-generator pre-amplifier
  • parameters standard configuration
    • main frequency range 20MHz to 1GHz
    • output power 20dBm
    • idle power consumption 90mA * 5V
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EMI Filter Test Boards

./pics/HFTP3_300.jpg    ./pics/HFCPWG1_300.jpg    ./pics/HFTP1_300.jpg    ./pics/HFTP3_plot.jpg
  • testboard for the evaluation of HF-properties of electronic components
  • allows validation of datasheet parameters
  • verification of interaction between components
  • cost optimization by component comparision
  • reduces EMI design risk
  • configuration examples
    • line and supply filter / dampening filter
      • SMA female connectors
      • coplanar waveguide 50Ω
      • pi-filter structure with several SMD-pads
    • supply filter
      • SMA female connectors
      • coplanar waveguide 50Ω
      • pi-filter structure with several SMD-pads
      • pi-filter structure with THT-Pads
      • auxiliary pads for SMD-fuses and protection diodes
    • universal carrier
      • pads for SMA female connectors or coax
      • filter struktures can be directly applied by insulation milling
  • example: frequency response of standard ferrite under bias current
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Serial-to-WiFi - Converter Platform

WLAN2UART_Demo.jpg    ./pics/WLAN2UART_Masze.jpg    WLAN2UART_TOP.jpg
WLAN2UART_Case.jpg
  • WiFi/IoT - adds WLAN / IP to any device and connects your application to the "Internet of Things"
    • HTTP/webserver
      • provides wireless access via webbrowser from smartphone, tablett or laptop
      • uniform user interface for Windows, iOS, Android, Linux
    • TCP/IP / UDP/IP
      • flexible and efficient access, for example, to sensor data
  • WLAN spezifications
    • 802.11 b/g/n protocol
    • Wi-Fi Direct (P2P), soft-AP
    • Integrated TCP/IP protocol stack
    • +19.5dBm output power in 802.11b mode
    • Wake up and transmit packets in < 2ms
    • Standby power consumption of < 1.0mW (DTIM3)
  • application interface
    • 1x UART (3,3V or RS232)
    • I2C (optional), SPI (optional)
    • 2..7 digital inputs/outputs
    • user key
    • 2x LED
  • development environment
    • open IDE Eclipse/GCC
    • available for Windows 7 and Linux
    • long-term project maintenance safety
  • requirements specific parts assembly options
  • supply voltage: 3,3VDC fixed or 4,5V..14VDC
  • supply current: self < 200mA, standby-current application dependant < 0.1mA
  • dimensions: PCB: 43x29mm (optional plastic case ca. 60x36xmm)
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BT_CC2541.jpg Bluetooth Low Energy Sensor

  • compact Bluetooth sensor platform
    • Texas Instruments CC2541F254RHAT
      • 2.4-GHz Bluetooth low energy System-on-Chip
      • Bluetooth 4 Low Energy Standard (BLE)
      • up to 2Mbps data rate
      • MCU Core 8051
      • simplified BT accreditation possible
    • periphery
      • MPU-6050 6D-sensor
        • 3x acceleration
        • 3x gyro
    • step-up-converter
      • dynamically adjustable
      • operating mode dependent MCU voltage
      • 1x AAA NiMH 800mAh
    • MicroUSB-charging connector
      • charge logic
        • battery voltage measurement
        • charge current measurement
    • operating mode display by two LEDs
    • operating mode select by push button
  • Firmware
    • BLE Stack by TI for IAR Embedded Workbench
    • application specific extensions
    • TI drivers, for example, for Win10 and iOS
  • current consumption: < 0.2mA standby, 0.5..20mA operation
  • dimensions: PCB 50x28mm (including battery ca. 50x42x13mm)
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SSI USB DUO - Converter Platform

ssi tool 1    ./pics/SSI_USB_DUO_Masze.jpg SSI_USB_DUO_case.jpg
  • flexible platform for customer specific converters, e.g.
    • translation from ABZ to SSI
    • SSI or ABZ scaling
      • e.g. 1000 pulses per revolution to 400 pulses per revolution
    • SSI to RS232 or RS485
  • digital interfaces for up to 2xSSI / 2xABZ / 6xRS422 / 6xRS485
  • fast bidirectional drivers for up to 10Mbit/s
    • achievable clock rates depend on the application (e.g. SSI-slave 2MHz, ABZ-scaling 1MHz)
  • communication 1x USB-device (optional RS232)
  • free logic configuration using ARM Cortex M4 Controller
  • requirements specific parts assembly options
  • power supply: via USB (opt. separate 5VDC or 24VDC).
  • current consumption: < 200mA
  • dimensions: 85x50.5mm (optional plastic case ca. 114x64x39mm)
  • SSI-products are listed at IB Kirchen
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SSI USB - Converter Platform

ssi tool 1    ./pics/SSI_USB_DUO_Masze.jpg SSI_USB_case.jpg
  • flexible platform for customer specific converters, e.g.
  • digital interfaces for up to 1xSSI / 1xABZ / 3xRS422 / 3xRS485
  • fast bidirectional drivers for up to 10Mbit/s
    • achievable clock rates depend on the application (e.g. SSI-slave 2MHz)
  • communication 1x USB-device (optional 2x 3V3-RS232)
  • free logic configuration using ARM Cortex M4 Controller
  • requirements specific parts assembly options
  • power supply: via USB (opt. separate 5VDC-9VDC)
  • current consumption: < 200mA
  • dimensions: 68x43.8mm (optional plastic case ca. 87x57x39mm)
  • SSI-products are listed at IB Kirchen
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light- and sound-module with 6D motion sensor

./pics/6DDL_TOP_300.jpg    ./pics/6DDL_BOT_300.jpg    ./pics/6DDL_PMA_300.jpg   
  • light- and sound-module for theater
  • application interface
    • ARM Cortex M0 MCU
      • STM32F051K8
      • 64kB Flash / 8kB SRAM
    • interfaces
      • 3x Power-LED, 2A, PWM
      • audio amplifier 4 bis 8 Ohm, maximum 2W
      • 6D motion sensor
      • microSD-slot
      • 2x push button interface
      • serial interface, 3,3V-level
    • power supply
      • single cell Li-Ion-Accu with 3,7V nominal voltage
    • all connectors as SMD-pads 4mm x 2mm on PCB top
  • dimensions
    • PCB: 31mm x 21mm
  • scope of work
    • development hardware
    • development firmware framework/drivers
    • development test equipment: test adapter, test software
    • manufacturing of sample and pre-series
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Digital Input-/Output-Module

./pics/DigIO_TOP_320.jpg    ./pics/DigIO_BOT_320.jpg
  • Bus enabled Digital Input-/Output-Module
  • Application interface
    • ARM Cortex M0 MCU
      • STM32F051K8
      • 64kB Flash / 8kB SRAM
    • 2x bus interface
      • 2-wire-RS485
      • 24V power supply
    • 4x configurable digital in-/outputs
      • digital input, isolated, wide range 5V..28V
      • digital output, isolated, max. 28V 100mA
      • status display
        • status LED green - input voltage detected
        • status LED orange - output contact closed
      • test buttons
    • temperature sensor
    • 1x status LED
    • all connectors are WAGO 250 terminal block 1,5qmm RM3.5
  • Housing
    • case and cable entries protection IP67
    • material: aluminium
  • Dimensions
    • PCB: 90mm x 68mm
    • Case: 100mm x 100mm x 81mm
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Load Cell Data Converter

./pics/Loadcell_ADC_320.jpg    ./pics/Loadcell_ADC_BOT_320.jpg
  • Bus enabled loadcell signal converter
  • Designed for official verification according to "International Recommendation OIML R 76-1 Edition 2006 (E)"
  • Application interface
    • ARM Cortex M0 MCU
      • STM32F051K8
      • 64kB Flash / 8kB SRAM
    • 2x bus interface
      • 2-wire-RS485
      • 24V power supply
    • 1x load cell
      • 4-/6-wire
      • AC/DC-measurement
      • 24bit ADC AD7195
    • calibration seal connector for hard firmware protection
    • temperature sensor
    • 1x status LED
    • all connectors are WAGO 250 terminal block 1,5qmm RM3.5
  • Housing
    • case and cable entries protection IP67
    • material: aluminium
  • Dimensions
    • PCB: 90mm x 68mm
    • Case: 100mm x 100mm x 81mm
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Data Collector with Ethernet E200

./pics/E200_V3_top_320.jpg ./pics/E200_V3_bot_320.jpg
  • Mmodule for multi-channel data collection.
  • Application interface
    • ARM Cortex M4 MCU @ 168MHz
      • STM32F417VG
      • 1024kB Flash / 192kB SRAM
      • 168MHz
      • CRYPTO-Hardware
    • 1x 100Mbps Ethernet
    • 4x UART RS232 RX/TX, Supply 24V 2A, 5V 0.5A
    • 2x UART RS485
    • 5x Digital Input, isolated, wide range 5V..28V, 1x Status LED per channel
    • 5x Digital Output, isolated, max. 28V 100mA, 2x Status LED per channel
    • 1x SD/MMC Card
    • battery buffered Real Time Clock
    • 1x System Status LED
    • Power Supply Input 19.2 . . 24V . . 28.8V
    • all connectors are WAGO 734 header for WAGO 2734 plug-/cageclamp 1,5qmm RM3.5
  • Dimensions: PCB: 168mm x 120mm
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Data Collector with Ethernet P100

./pics/StegaSquare_320.jpg
  • Extendable module for multi-channel data collection.
  • Application interface
    • ARM Cortex M4 MCU @ 168MHz
      • STM32F417VG
      • 1024kB Flash / 192kB SRAM
      • 168MHz
      • CRYPTO-Hardware
    • 1x 100Mbps Ethernet
    • 5x UART RS232 RX/TX
    • 1x UART switchable RS232 / RS485
    • 4x Digital Input, isolated, wide range 5V..28V
    • 4x Digital Output, isolated, max. 28V 100mA
    • 4x ADC, 12bit, 0..3,3V
    • 1x SPI, 8x ChipSelect, 3,3V
    • 1x I2C, 3,3V
    • 1x SD/MMC Card
    • battery buffered Real Time Clock
    • 1x System Status LED
    • Power Supply Input 5V
    • all connectors are WAGO 250 terminal block 1,5qmm RM3.5
  • Dimensions: PCB: 150mm x 135mm
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Seriell-to-AS-i - Bridge

./pics/ASi_Xceiver_Masze.jpg    ASi_Xceiver_case_320.jpg
  • AS-Interface, short "AS-i", means Actor-Sensor-Interface. It is an industrial fieldbus system, which transports data and power supply on two wires. Since 1999 AS-Interface is an international standard according to EN50295 and IEC62026-2.
  • Application example:
    • power and data transport via two wires
    • data protocol: RS232 115200 8N1
  • ASi-Xceiver is an AS-i development platform which implements the following functions without AS-i-ASICs:
    • AS-i bus master
      • physical translation of Sensor/Actor-Data to AS-i
      • logical translation of Sensor/Actor-Data to AS-i- or proprietary protocol
    • AS-i slave
      • physical translation of Sensor/Actor-Data to AS-i
      • logical translation of Sensor/Actor-Data to AS-i- or proprietary protocol
    • AS-i power supply
      • injection of 24V supply voltage into the AS-i-bus
  • AS-i bus interface
    • 62 devices
    • data rate 160kBaud
    • line length 100m (without repeater)
    • WAGO 250 cage clamp 1,5qmm RM3.5
  • application interface
    • ARM Cortex M0 MCU
      • STM32F030F4P6
      • 16kB Flash / 4kB SRAM
      • 48MHz
      • TSSOP20
    • 1x UART (3,3V / RS232 / RS232 floating)
    • 1x SPI (3,3V)
    • 1x Status LED
    • supply output 3,3V (400mA max.)
    • supply output 24V (4A max.)
    • WAGO 250 cage clamp 1,5qmm RM3.5
  • AS-i 24V power supply
    • power supply input 24V (3A max.)
    • AS-i data coupler (3A max.)
    • WAGO 250 cage clamp 1,5qmm RM3.5
  • requirements specific parts assembly options
  • supply voltage range: AS-i bus voltage 16..34VDC
  • supply current: self < 40mA, standby-current application dependant < 5mA
  • dimensions: PCB: 85x56mm (optional plastic case ca. 114x64x29xmm)
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./pics/tec-lab_16_24_3_produkte_web2.jpg Display Controller for Laboratory Devices

  • display- and communications-unit for a high performance temperature maintaing equipment
  • circuit design and firmware development
    • integrated STM32 controller for display, touch and backlight
    • communications interface between host-PC and dedicated temperature controller
    • staves programmable beeper, 2x case fan, 3 digital inputs, 1 floating digital output
    • RS-485, RS-232 and VCP-/DFU-USB software control interfaces
  • a product of head electronic GmbH - the TEClab16-24
    • presented at LASER World of Photonics 2013 in Munich
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allTimer - Customer Specific Timer

BallTimer_front    BallTimer_side
BallTimer_top    BallTimer_bottom
  • customer specific timer with LCD
    • display range up to 99.99s
  • cost optimization by microcontroller application
    • assembly language program
    • instruction clock 8192 Hz
    • LCD direct control (glass only, 3-fold multiplexing)
    • program memory usage ca. 500 x 12 Bit
    • data memory usage ca. 23 Byte
  • microcontroller PIC16F57
    • 2048 x 12 Bit Flash
    • 72 Byte SRAM
    • 20 MHz max.
    • SSOP28 package
  • battery runtime
    • ca. 5000 operating hours using CR 2032
    • supply voltage 2.8..3.3V
    • supply current ca. 15..40μA
  • PCB
    • 52mm x 35,5mm
    • microcontroller
    • LCD-interface
    • battery holder
    • up-/down voltage converter (optional)
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Compact RFID Base Station

./pics/RFIDM_Family_180.jpg        ./pics/RFIDM_PM_180.jpg
  • industrial standard 125kHz RFID
    • EM Microelectronic EM4095
    • base modul for read/write
  • high range due to 2,8mH transceiver coil
    • adaptable to customer specific coils
  • integrated Manchester-to-serial-decoder
    • 5V-RS232, 9600 Baud
    • adaptable to customer specific protocols
  • microcontroller ATtiny10
    • SOT23-6 package 2mm x 3mm
    • 1 kByte Flash
    • 32 Byte SRAM
    • 8 MHz
  • module size
    • 26mm x 26mm x 3,5mm
  • development of hardware, firmware and test-/programming-adapter for IB Kirchen
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Subminiature Melody Generator


tq10_melodie.jpg        tq10_usek.jpg
  • demonstrator for subminiature tone generator
    • tone generator in assembly language
    • melody memory for 200 notes
    • minimal config is 4 SMD elements on ca. 1 square centimeter PCB
    • sensor input for e.g.
      • switch
      • light sensor
      • magnet sensor
    • ultra-low-power
      • standby current below 1 micro ampere
      • standby time at CR2032 several years
      • operating current ca. 1 milli ampere plus speaker current
  • TQ10B_CR2032_611.png
  • microcontroller ATtiny10
    • SOT23-6 package 2mm x 3mm
    • 1 kByte flash
    • 32 Byte SRAM
    • 8 MHz
  • PCB Demonstrator
    • 26mm x 11mm
    • microcontroller
    • PWM-amplifier and filter(optional)
    • voltage regulator (optional)
  • PCB with CR2032 battery holder
    • 29mm x 24mm
    • microcontroller
    • PWM-amplifier and filter(optional)
    • push button
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Floating Christmas Ball 2012


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  • Demonstrator for compact control application
    • PD-controller in assembly language
  • microcontroller ATtiny10
    • SOT23-6 package 2mm x 3mm
    • 1 kByte flash
    • 32 Byte SRAM
    • 8 MHz
  • PCB
    • 50mm x 11mm
    • microcontroller
    • PWM-amplifier
    • current measurement amplifier (optional)
    • power supply
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SSI TOOL 1 - Converter Platform with FPGA


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  • flexible platform for customer specific converters
  • digital interfaces for up to 2xSSI / 2xABZ / 6xRS422 / 6xRS485
  • fast bidirectional drivers for up to 10Mbit/s
  • precision analog inputs up to 2x 24bit +/-10V
  • communication 1x RS232
  • free high speed logic configuration due to FPGA
  • optional integration of XILINX PicoBlaze microcontroller inside FPGA
  • requirements specific parts assembly options
  • SSI-products are listed at IB Kirchen
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CentiPad - Embedded Linux Module ./pics/CP_StarterKit_640.jpg

  • AT91RM9200 ARM9 CPU / SDRAM / Flash / miniSDcard
  • communication:
    • LAN / seriell / USB / Sound
  • interfaces:
    • address-/data-Bus / I2C / SPI / 1wire / CAN
  • 1,1W typical power demand
  • 94mm x 62mm
  • CentiPad was developed as a platform for HAREROD customer applications
    • recent application e.g. as development platform for the Finnish AALTO-1 satellite
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Ultrasonic Gas Flow Sensor

  • conversion of a LabVIEW setup into a cost efficient small appliance
  • analog frontend for ultrasound transducers
  • digital signal prozessor TMS320F2812
    • signal acquisition and processing (Assembler)
    • command interpreter (C)
  • system interface: 5V sensor supply and RS232 interface
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RS422 Encoder Splitter/Repeater

  • Splits ABZ-Encoders into two RS422-outputs
  • additional TTL-output
  • signal reconstruction
  • application specific maximum data rate: 250kbps, 2.5Mbps, 20Mbps
  • EMI protection
  • self supply viw wider range SEPIC-converter 4,5V..29V
  • sensor supply (output): 5V, 400mA
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Digital Speed Control for Shutter Motor

  • application for medical gas analysis
  • replacement of an analog DC motor control by 8pin ATtiny15
  • simpler commissioning and better long term stability
  • longer life time due to additional motor fitness functions
  • significant cost reduction
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Control of a Portable Nutrition Pump with Microcontroller

  • application in medical patient nutritioning
  • replacing an analog DC motor control by 8pin PIC12
  • simpler commissioning and better long term stability
  • improved performance
  • significant cost reduction
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MAHPONG TV-Tennis

  • often build, fun for the whole family
  • BAS-video-generation in AVR-Assembler
  • link to German MAHPONG-Seite
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