watch "This Is Not What I expected" to get the perfect preparation
hydration level 4 is a good choice
Welcome to CuVoodoo,
the sorcery of copper.
this is an Alpatec DH 10
STM32F103-based blue pill
fx2lafw, 8 channels, 24 MHz
ST-Link/V2 clone
*evaporator
I use sigrok to read from the logic analyzer
and pulseview to show the trace
just a high level
e.g. bidirectional
I used the MCU's internal pull-up since I did not have a resistor at hand
I use lepton-EDA
and pcb-rnd
STM8S003 as MCU, and AHT20 as humidity sensor
with no parts (or traces) on the back side