Posts made by lewis

Hi，
Can you measure the voltage at this point? Please connect the battery and measure the voltage at this point in the picture to see how much V it is.

Have you tried SDWebServer? https://github.com/espressif/arduino-esp32/tree/master/libraries/WebServer/examples/SDWebServer

The signal value of 20 is very normal. In my case, it is about 19~23.

Please refer to here: https://github.com/Xinyuan-LilyGO/LilyGo-LoRa-Series/blob/master/examples/RadioLibExamples/SX1276/SX1276_Transmit_Interrupt/SX1276_Transmit_Interrupt.ino

@ak Around 800uA

This may not be possible on the existing basis, and part of the current consumption should come from the power consumption itself

I have an example using MicroPython before, but using ESP32, they are all driven by the built-in SPI module of MicroPython, you should modify the pins slightly and it should work fine

https://github.com/lewisxhe/mPython_ST7789

Please change the network mode to automatic to see if you can connect to the network correctly

modem.setNetworkMode(2);

Please refer to here MqttClient

Have you set SMS_TARGET correctly?
Set SMS_TARGET to the object you need to send, and your SIM card needs to support sending messages

T-DISPLAY uses ESP32
T-DISPLAY-S2 uses ESP32-S2
As shown in the figure below, in addition to the already used IO ports, you can freely allocate available IO ports

Just move the green selected original to the red pad

I don't understand what is your problem? VBUS input source is MicroUSB, D1 and Q1 are battery input and VBUS selection circuit

Schematics are already stored on Github

The purchase link has a pinout.

Just move the green original to the red position to use the external antenna

1. TTGO LoRa32 V2.1-1.6 is the same as TTGO LoRa32 V2.1-1.6.1, we just changed the silk screen on the board.
2. The OLED on the board uses (SDA)21 , (SCL)22
3. There are schematic diagrams and reference codes in our warehouse, please see here Link