@teastain2 Thank you. That was the conclusion I was coming to. Realistically, I can only use i2c, rather than some resistive sensors and use some A2D pins.

I'm using the T-PCIE SIM7600G-H and not having an issue.
By "disconnecting"... is the PCIE disconnecting from the CPU or is it disconnecting from the 4G network?

thanks @teastain2
Yes I'm a newer, thanks for your repository

593dbbb6-32fc-405b-b08c-6e15fe4dd5d6-[]K{OW8J6EUNN%41}7Q{7_I.JPG
RV1 resistor position, as shown in the diagram

@gerald10 said in T-SIM7600G-H R2 questions:

T-SIM7600G-H R2

Hi,

i have the A7608 board, which is quite similar to what you have.

some answers:

I do not know, but it would be best to implement some logic where if the battery is below a threshold you keep deep sleeping. That battery also costs a lot of money. You might want to first try a standard 18650, e.g. with 2-3 Ah and see how it goes. Connecting to wifi every 15 minutes and using proper deep sleep gives me a month of battery time without any charge. I think the open circuit voltage of that panel is to high. The board has a CN3065 charging chip (search the datasheet online), and accept up to 6.5V max. Search a "5V" solar panel. Again, I do not know the specifics of your application, but a 1w solar panel can do miracles in many applications. this will depend on the cpu frequency you set for the esp32. At 240MHz, my board sucks 40 mA, but at 40 or 80 MHz you can go down to 10 mA. For battery powered applications you need to learn to deep sleep as much as possible. not sure not sure, but I would suspect live streaming 24/7 requires a different thinking for the power system not sure the antenna can stay in the enclosure you use for the board i use standard abs or polycarbonate enclosure boxes. There are tons of models available for ~10$

Davide

Is there perhaps a test pad for VBUS?

@kreier Thanks for helping out with this. I saw your PR. Looks like they’re waiting for an update from you. https://github.com/pidcodes/pidcodes.github.com/pull/827#discussion_r1135991673

@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.

@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.

-Terry

@etolocka Yes, it does. It's the red component marked C3, which is a compact "ceramic antenna" shown in the upper right image.
https://www.lilygo.cc/en-ca/products/t-oi-plus?variant=42306652111029

refer to the schematic page 1 upper left:
https://github.com/Xinyuan-LilyGO/LilyGo-T-OI-PLUS/blob/main/schematic/T-OI_PLUS_Schematic.pdf

Aliexpess:
https://www.aliexpress.com/i/3256801896137015.html?gatewayAdapt=4itemAdapt

@jcorbella You will need:

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