BTB dat

• FPC-dat

• ESP32-SPI-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

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

• ESP8266-HDK-dat

• LORA-HDK-dat - SX1262-MD1-dat - SX1262-HDK-dat

wiring for SX1262-dat

ESP8266	func	conn.L	conn.R	func	ESP8266
io16	BUSY	11	12	serial	TXD
io14	SPI_SCK	9	10	serial	RXD
io12	SPI_MISO	7	8	TXEN	io5
io13	SPI_MOSI	5	6	RXEN	io4
IO0	DIO1_irq	3	4	SPI_CS	io15_d
3V3	power	1	2	power	GND

rotate to fit physically

	1	2	3	4	5	6
ESP8266	3V3	IO0	io13	io12	io14	io16
func	power	DIO1_irq	SPI_MOSI	SPI_MISO	SPI_SCK	BUSY
conn.L	1	3	5	7	9	11
conn.R	2	4	6	8	10	12
func	power	SPI_CS	RXEN	TXEN	serial	serial
ESP8266	GND	io15_d	io4	io5	RXD	TXD

connectors

• total height = 3.0
• 12P, 0.8mm pitch

base board == bottom board

• ESP32-dat

• NWI1230-dat == ESP8266-dat

• DAR1060-dat

supported boards == module board == top board

• NGS1128-DAT == SIM7080-dat

• SX1262-MD1-dat - SX1262-dat

attach board ref

lora

• Lora-dat - ESP32-SPI-dat

• use UART as main interface

SIM7020

• use UART as main interface

SIM7080

• NGS1128-dat
• removed, due to less popular

ref

• BTB