Signal generation and measurement


This module is based on the 3 channels version of the Si5351 clock generator chip. The compact board integrates an SI5351 clock generator, a micro controller Atmega328p, a digital selector and a liquid crystal display. This is a very lightweight solution to produce 3 independent clocks for your prototyping projects.

Main features:

  • 3 independent clocks with tuneable frequency, drive power and phase
  • One clock frequency can be set as high as 200 MHz
  • Two other clocks can be set up to 100 MHz
  • Minimum frequency 1500 Hz
  • Each clock can be active, inverted or inactive
  • Voltage supply 4-12V
  • Easy and fast setting of parameters using a digital selector with a turbo mode
  • The board can communicate and be programmed via SPI or serial UART
  • I2c port available
  • The board will be supported by the Arduino environment
  • All parameters are shown on a PCD8544 type LCD (Nokia 5110)
  • Output via PCB headers or BNC connectors
  • Auxiliary 3.3V output



This upgrade of the version 1 of the frequency counter has capabilities that are currently unequalled in such a compact solution. This is a very wideband frequency counter covering the low, middle, high and very high frequencies up to 100 MHz (-3 dB). The resolution is given on 6 digits or more. It is Arduino UNO compatible and conceived to be used as a programmable component that can be integrated as part of a larger system.

Main features:

  • Frequency bandwidth: 5Hz – 100 MHz
  • Resolution: 5 Hz – 10 Mhz: 6 digits. 10 MHz – 100 MHz: 7 digits, or more.
  • Sensitivity: 70 mV RMS sine wave
  • Time base: TCXO with 2.5 ppm frequency stability or 0.5 ppm frequency stability
  • Arduino UNO compatible
  • Has SPI, UART and I2C ports available. Can be used as I2C slave or master


Solar power solutions

Bright Sun

It is a very compact intelligent solar power solution, designed to power projects requiring current in the tens to hundreds of mA and up to 2A. This lightweight board is the perfect choice for powering standalone Arduino and Raspberry projects. It can optimise power storage and power use.

Main features:

  • For 10 to 20V solar panels or other weak current sources, up to 1A
  • Very high efficiency solar buck converter to charge a 7.2V battery pack of any of these types (multichemistry) with settable charging current up to 1A (8.4V)
    • Li-Ion (2 cells)
    • Li-Po (2 cells)
    • Ni-Mh (6 cells)
    • Ni-Cd (6 cells)
  • Very high efficiency buck converter to provide up to 2A of current to the load (5/3.3/1.8V)
  • Hardware selectable 5V, 3.3V or 1.8V main output voltage
  • Auxiliary 100 mA 3.3V source to power internal circuitry and low power peripherals
  • Arduino UNO compatible
  • Has serial SPI, UART and I2C ports available to communicate with the board or to program it
  • LCD type PCD8544 to easily monitor power parameters and configure the module. Can be used without LCD to reduce power consumption
  • Very low power consumption
  • Monitors on demand or on a schedule:
    • Input voltage, current and power
    • Battery charging current and battery voltage
    • Charging status
    • Output voltage, current and power
  • Can store monitored data to improve power usage for very low power standalone applications



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