avfv
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Last time I read article about MultispeQ device: https://royalsocietypublishing.org/doi/10.1098/rsos.160592
It contains PAR meter based on color sensor TCS34715FN, and it works very close to LiCor quantum sensor.
The clear channel of TCS34725 chip has perfect quantum response, so I build my own device:
I use blue pill (STM32F103C8T6 development board like arduino), 1.3" OLED screen and TCS34725 board.
Schematics, firmware and source code here: https://github.com/AVarfolomeev/tcs34725_par_meter2
This device support manual calibration via USB serial port, I calibrated it use luxmeter.
Only one limitation: bare sensor can't measupe PAR above 460-500 umol/m2/s, it designed to work under dark glass and has very high sensivity.
It contains PAR meter based on color sensor TCS34715FN, and it works very close to LiCor quantum sensor.
The clear channel of TCS34725 chip has perfect quantum response, so I build my own device:
I use blue pill (STM32F103C8T6 development board like arduino), 1.3" OLED screen and TCS34725 board.
Schematics, firmware and source code here: https://github.com/AVarfolomeev/tcs34725_par_meter2
This device support manual calibration via USB serial port, I calibrated it use luxmeter.
Only one limitation: bare sensor can't measupe PAR above 460-500 umol/m2/s, it designed to work under dark glass and has very high sensivity.
