Pico-2g-expansion

Pico 2G Expansion (Incomplete Wiki)

Raspberry Pi Pico 2G Expansion is a QUAD-Band GSM/GPRS/GNSS Expansion designed dedicatedly for Raspberry Pi Pico with UART, USB 2.0 Interface, 850/900/1800/1900 MHz, Bluetooth 3.0 based on SIM868 module to perform easy and efficient communication. Pico 2G Expansion works on the embedded TCP/UDP Protocols with Multi-constellation GNSS receiver support.

Pico 2G Expansion also includes a 1.14-inch display with a resolution of 240 x 135 pixels, 65K RGB colors, and a sharp and vivid exhibiting effect, designed primarily for user engagement via SPI connection by incorporating a GPIO header. The 1.14-inch LCD includes the ST7789 Driver and SPI Interface, decreasing the amount of IO pins required.

Features

• 1.14” LCD
• Low Power Consumption
• 850/900/1800/1900 MHz Frequency band
• Bluetooth 3.0
• LED Indicators
• Serial/USB/SIM868 Selection Jumpers

Specifications

• Operating Voltage - 5V(via USB)
• Communication - UART/USB 2.0
• SIM Module - SIM868
• Compatibility - Raspberry Pi Pico
• Operating Temperature - -400 ~ 800 C
• Dimensions - 68 x 119.64 mm

File:Pico 2g expansion.png

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Pinout

PICO 2G Board	PICO Pins
VCC	5V
GND	GND
LCD DIN	GP11
LCD CLK	GP10
LCD DC	GP8
LCD CS	GP9
LCD RST	GP12
LCD BL	GP13
SIM868 PWRKEY	GP22
SIM868 TX	GP1
SIM868 RX	GP0

Jumper Selection

SIM868 Operation (Device Selection)			400 px
Jumpers 1	Jumper 2	MODE
Short P_TX - U_RX	Short P_RX - U_TX	Pico to USB Communication
Short U_RX - S_RX	Short U_TX - S_TX	USB to SIM868 Communication
Short P_TX - S_RX	Short P_RX - S_TX	SIM868 to Pico Communication
Open	Open	No Communication

Resources

• 'Software
  • SIM868 AT commands Manual

• Github
  • Source Code