The HP 3466A uses a dual-ramp ADC. The Arduino is used to measure the discharge ramp time of the integrator capacitor (C402), RunDown (fig. 8.4 of the manual). The charge time (RunUp) of C402 is ...
The function similar to "PulseIN" function of Arduino is written in this repository. The function is written in MicroPython Language and tested on Dust sensor which can give the PWM output. The ...