BTB dat
mount the concave part on the bottom, and convex part on the top
https://www.electrodragon.com/w/ED-BTB
BTB 12 pins connector
| ESP32 Pin | Function | Lora |
|---|---|---|
| IO14 | SPI_SCK | |
| IO12 | SPI_MISO | |
| IO13 | SPI_MOSI | |
| IO15 | SPI_CS | |
| IO4 | IO | LORA_IRQ |
| IO27 | IO | LORA_RESET |
| ESP8266 | func | conn.L | conn.R | func | ESP8266 |
|---|---|---|---|---|---|
| io16 | IO0 | L-1 | R-1 | serial / IO5 | TXD |
| io14 | SPI_SCK | L-2 | R-2 | serial / IO4 | RXD |
| io12 | SPI_MISO | L-3 | R-3 | SCL / IO3 | io5 |
| io13 | SPI_MOSI | L-4 | R-4 | SDA / IO2 | io4 |
| +5V | power | L-5 | R-5 | SPI_CS | io15_d |
| 3V3 | power | L-6 | R-6 | power | GND |
- 1x 4-line SPI-dat + 5x GPIO-dat
- 1x 4-line SPI-dat + 1x Serial-dat + 1x I2C-dat + 1x GPIO-dat
1x 4-line SPI-dat + 1x Serial-dat + 3x GPIO-dat
connectors
- total height = 3.0
- 12P, 0.8mm pitch
base board
supported boards
attach board ref
lora
use UART as main interface
SIM7020
- use UART as main interface
SIM7080
- NGS1128-dat
- removed, due to less popular
