mount the concave part on the bottom, and convex part on the top
https://www.electrodragon.com/w/ED-BTB
BTB 12 pins connector
lead out pins
| ESP32 Pin | ESP8266 Pin V2 | ESP8266 set | Function |
|---|---|---|---|
| +5V | IO0 | u | +5V or IO |
| IO13 | IO13 | SPI_MOSI | |
| IO12 | IO12 | SPI_MISO | |
| IO14 | IO14 | SPI_SCK | |
| IO27 | IO16 | IO | |
| IO15 | IO15 | d | SPI_CS |
| IO21 | IO4 | u | SDA |
| IO22 | IO5 | u | SCL |
Version V2
| - | - | - | - | - | - | - |
|---|---|---|---|---|---|---|
| func | 3V3 | - | - | - | - | - |
| ESP8266 | 3V3 | 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 | - | - | - | - | - |
Version V1
| - | - | - | - | - | - | - |
|---|---|---|---|---|---|---|
| func | 3V3 | - | - | - | - | - |
| ESP8266 | 3V3 | 5V | 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
| ESP38266 Pin | set | Function | Lora V2 | Lora V1 |
|---|---|---|---|---|
| IO0 | u | IO | RESET | IRQ |
| IO13 | SPI_MOSI | SPI_MOSI | SPI_MOSI | |
| IO12 | SPI_MISO | SPI_MISO | SPI_MISO | |
| IO14 | SPI_SCK | SPI_SCK | SPI_SCK | |
| IO16 | - | IO | BUSY | BUSY |
| IO15 | d | IO | IRQ | CS |
| IO4 | u | IO | CS | TXEN |
| IO5 | u | IO | - | RXEN |
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
