BPI-BIT Development Board Pinout and Technical Specifications

Code name: BPI_BIT

BPI-BIT development board is based on esp32 microcontroller and uses xtensa architecture. This development board has a maximum CPU frequency of 160 MHz and a flash size of 4MB.

Features

40 digital IO pins
16 external interrupt pins
16 analog input pins
21 PWM pins

Connectivity

WiFi: 802.11 b/g/n (2.4 GHz)
Bluetooth: 4.2
WiFi: 4.2

Technical specs

Clock Speed	160 MHz
Flash size	4MB
Microcontroller	esp32
Architecture	xtensa

BPI-BIT Pins Mapping Arduino IDE

Below you can find the BPI-BIT pinout. This development board provides 40 digital IO pins, out of which 16 can be used as an external interrupt pins , 16 as analog input pins and 21 pins have Pulse-Width Modulation (PWM) .

Pin	PWM	Other
0		MPU9250_INT
1	PWM	TX
2	PWM
3	PWM	RX
4	PWM	RGB_LED
5	PWM	SS
12	PWM
13	PWM
14	PWM
15	PWM
16	PWM
17	PWM
18	PWM	SCK
19	PWM	MISO
21	PWM	SDA
22	PWM	SCL
23	PWM	MOSI
25	PWM	BUZZER DAC1
26	PWM	DAC2
27	PWM	BUTTON_B
32	PWM
33	PWM
34		TEMPERATURE_SENSOR
35		BUTTON_A
36		LIGHT_SENSOR1
39		LIGHT_SENSOR2

Analog - Analog input pins

Touch - Touch pins

Function - Function pins

RX / TX - Receive (RX) / Transmit (TX)

LED_BUILTIN - Built-in LED

PWM - Pulse-Width Modulation

Default Tools

Bootloader tool	esptool_py
Uploader tool	esptool_py
Network uploader tool	esp_ota
Bootloader address	0x1000
Flash mode	dio
Boot mode	dio
PSRAM type
Maximum upload size	1280 Kb (1310720 B)
Maximum data size	288 Kb (294912 B)

The BPI-BIT development board by default uses esptool_py uploader tool, esp_ota network uploader tool for Over-the-air (OTA) uploads and esptool_py bootloader tool. The bootloader starts at address "0x1000". Flash mode and boot mode for BPI-BIT development board by default is dio and dio respectively. When using Arduino IDE, the maximum sketch upload size is 1280 Kb (1310720 B) and maximum data size for variables is 288 Kb (294912 B).