The secret sauce is in component selection and tuning. Opengeiger uses the BPW34 diode because it is relatively common and has a large surface area, but also because it has a very low capacitance ...
The probe is just a ATtiny85 board with a handful of components. A resistor and diode help protect the probe and the circuit under test. There are also a few LEDs and a buzzer. The rest of the ...
Here I propose a set of principles to guide probe qualification. Mechanism of action. A quality chemical probe has sufficient mechanistic data versus its intended molecular target to enable ...
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