SIM900 GSM/GPRS Module (Discontinued)
Discontinued quad-band GSM/GPRS module configured via AT commands over UART, operating at 3.3 V logic with ~1.5 mA sleep current. No longer in production; replacement parts should be evaluated for new designs.
Pinout
- VCCType · Power
- GNDType · Ground
- TXDType · UART
- RXDType · UART
- PWRKEYType · Control
- RSTType · Control
| Pin | Type |
|---|---|
| VCC | Power |
| GND | Ground |
| TXD | UART |
| RXD | UART |
| PWRKEY | Control |
| RST | Control |
Pin details
6 connections- VCCPower
- GNDGround
- TXDUART
- RXDUART
- PWRKEYControl
- RSTControl
Start wiring
UART · USB · Breakout
Verify supply voltage and logic levels before powering up.
Module pins: VCC, GND, TXD, RXD. Schematik maps them to your board in the app.
Cellular
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