@hosky well, you could use the esp32 built in ADC to read pin 4 bat volt, or wire the 5V pin to a voltage divider and then to a GPIO, such as 16 and digitalRead it.
Can someone from Lilygo request the PID again? And a second one for the T-PicoC3? The board description is complete and working with Circuitpython 8.1.0 but it is not published because the PID is missing.
Can someone from Lilygo request the PID again? And a second one for the T-PicoC3? The board description is complete and working with Circuitpython 8.1.0 but it is not published because the PID is missing.
@luki743 LilyGO T-Display S3, easy;
T-Embed not so much.
The T-Embed repository is here: https://github.com/Xinyuan-LilyGO/T-Embed
You only need one GPIO and gnd if the sn65hvd230 is powered by the other device.
CAN takes a single digital output (GPIO) from the ESP and converts it to "differential" + signal, - signal.
The "Grove" connector maybe configured as CAN and maybe a few spare GPIO on that unpopulated development pad on the lower left of the image.
a separate power supply rated for the pump
a small relay or mosfet to switch the pump to help isolate the pump motor from the ESP32 circuitry
all grounds connected to a "common"
no power interconnections, I.e. power isolated between LilyGO and pump power supply
@teastain Thank you! this is insightful. Really appreciated. i'd have to look into it when i have the time... perhaps the type of battery? i don't know. but at this point.. USB-C it is.. hahahah
Hi! This site is mostly user supported, I am a user.
China was on holidays last week, so they may be "catching up"
This email sales@lilygo.cc got an immediate response and they were sincerely interested and helpful.