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LilyGO / TTGO-LoRa32-V2.1

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free/usable pins #10

Open ppisljar opened 2 years ago

ppisljar commented 2 years ago

I am trying to figure out if there are any free pins on this development board ? looking thru the list published here: https://github.com/Xinyuan-LilyGO/TTGO-LoRa-Series schematics published here: https://github.com/LilyGO/TTGO-LORA32/blob/master/schematic1in6.pdf and esp32 pin reservations published here: https://randomnerdtutorials.com/esp32-pinout-reference-gpios/

this is what i came up with: does that mean there are no free/usable pins on this board ?

36 // input only 39 // input only RST 34 // input only 35 // input only 14# sdcard SCLK 12# // output only, boot fail if pulled high (in schematics its connected to microSD DAT3?) 13# sdcard CS 15# sdcard MOSI 02# sdcard MISO 00 // output only, random output at boot 04 <-- only usable pin ? in schematic seems to be connected to microSD DAT1 ?
25# geen led

21 oled SDA TX RX 22 oled SCL 23 lora RST 19 lora MISO Lora1 Lora2 26 lora DIO0 GND 3.3 GND 5v

ppisljar commented 2 years ago

is maybe pcb design available, i would like to cut away the sdcard part (i need those pins for ADCs and they are currently pulled high)