12P-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 |
general wiring
| - | - | - | - | - | - | - |
|---|---|---|---|---|---|---|
| func | 3V3 | - | - | - | - | - |
| ESP8266 | 3V3 | 5V / IO0 (u) | io13 | io12 | io14 | io16 |
| conn.T | 1 | 3 | 5 | 7 | 9 | 11 |
| conn.B | 2 | 4 | 6 | 8 | 10 | 12 |
| ESP8266 | GND | io15(d) | io4 (u) | io5 (u) | RXD | TXD |
| func | GND | - | - | - | - | - |
note only IO2 not lead out to the connecor
- 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
LORA-HDK-dat - SX1262-MD1-dat - SX1262-HDK-dat - Lora-SDK-dat
wiring for SX1262-dat
V2
| 1 | 2 | 3 | 4 | 5 | 6 | |
|---|---|---|---|---|---|---|
| func | 3V3 | RESET | SPI_MOSI | SPI_MISO | SPI_SCK | BUSY |
| ESP8266 | 3V3 | IO0 | io13 | io12 | io14 | io16 |
| conn.L | 1 | 3 | 5 | 7 | 9 | 11 |
| conn.R | 2 | 4 | 6 | 8 | 10 | 12 |
| ESP8266 | GND | io15 | io4 | io5 | RXD | TXD |
| func | GND | D1_IRQ | NSS | serial | serial |
V1
| 1 | 2 | 3 | 4 | 5 | 6 | |
|---|---|---|---|---|---|---|
| func | 3V3 | DIO1_irq | SPI_MOSI | SPI_MISO | SPI_SCK | BUSY |
| ESP8266 | 3V3 | IO0 | io13 | io12 | io14 | io16 |
| conn.L | 1 | 3 | 5 | 7 | 9 | 11 |
| conn.R | 2 | 4 | 6 | 8 | 10 | 12 |
| ESP8266 | GND | io15 | io4 | io5 | RXD | TXD |
| func | GND | SPI_CS | RXEN | TXEN | serial | serial |
connectors
- total height = 3.0
- 12P, 0.8mm pitch
top is "plug", bottom is the "base"
BOT PLUG board
TOP Base board module board
attach board ref
lora
use UART as main interface
SIM7020
- use UART as main interface
SIM7080
- NGS1128-dat
- removed, due to less popular
