{"title":"32u4 with A9G GPRS GSM GPS-V1.1","handle":"32u4-with-a9g-gprs-gsm-gps-v1-1","url":"/products/32u4-with-a9g-gprs-gsm-gps-v1-1","description":"An all-in-one development board combining an ATmega32U4 microcontroller with an A9G GPRS/GSM/GPS module. Capable of making voice calls, sending SMS text messages, and providing GPS positioning — all controllable via AT commands over serial. The board includes analogue, I2C, and digital expansion interfaces for connecting additional sensors and modules.\n\nThe A9G module supports quad-band GSM (850/900/1800/1900 MHz) for worldwide 2G network compatibility, GPRS Class 10 data, and GPS positioning with less than 2.5m horizontal accuracy. A 3.5mm headphone jack is included for voice audio.\n\nKey Features\n\n\nATmega32U4 + A9G – Arduino-compatible MCU with integrated GSM/GPRS/GPS\n\nVoice, SMS, and Data – Make calls, send texts, and transfer data over GPRS\n\nGPS Positioning – Less than 2.5m horizontal accuracy\n\nQuad-Band GSM – 850/900/1800/1900 MHz for global 2G coverage\n\n3.5mm Audio Jack – For voice calls with headset\n\nLow Standby Current – ~3mA or less in standby\n\nAT Command Control – Standard GSM 07.07/07.05 and Ai-Thinker extended commands\n\n\nSpecifications\n\n\nMCU – ATmega32U4\n\nCellular Module – A9G\n\nWorking Voltage – 3.3–5V\n\nGSM Bands – Quad-band 850/900/1800/1900 MHz\n\nGPRS Class – Class 10 (85.6 kbps down, 42.8 kbps up)\n\nGPS Accuracy – <2.5m horizontal\n\nBaud Rate – 115200 bps\n\nStandby Current – 1.2–1.3mA (DRX dependent)\n\nA9G Module Size – 19.2 × 18.8 × 3mm\n\nOperating Temperature – -30°C to +80°C\n\nProtocol Stack – PPP/TCP/UDP/HTTP/FTP/SMTP/MUX\n\nSpeech Coding – HR, FR, EFR, AMR\n\nCertifications – RoHS, FCC, CE, CTA\n\n\nExpansion Interfaces\n\n1× Analogue input\n1× I2C interface\n2× Digital interfaces\n\n\nIdeal For\n\nGPS tracker projects\nRemote monitoring and telemetry over 2G\nIoT devices requiring cellular connectivity\nSMS-based alert and notification systems\n\n\nPackage Contents\n\n1× 32u4 with A9G GPRS/GSM/GPS Board\n\n\n\nNote: Ensure your SIM card is not PIN-locked before inserting. This board is supplied without an insulated housing — take ESD precautions, especially in humid conditions.\n\n\nResources\n\nUser Manual and Wiki (Elecrow)\n","vendor":"Elecrow","product_type":"physical","in_stock":true,"options":[],"variants":[{"id":4034,"title":"Default Title","sku":"EC-AMC01219U","price":40.13,"on_sale":false,"in_stock":true,"available_quantity":100,"option1":"Default Title"}]}