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com/adafruit-fona-mini-gsm-gprs-cellular-phone-module
reverse-polarity protection
Its operating voltage is from 3
1: Arduino connector :for connecting Arduino shields
Product Button Digital For Arduino and Raspberry Pi Voltage 3V to 5V Size 20*12mm Pins Power
Seeed Grove IR Temperature Sensor - 101020062 arc com/adafruit-fona-mini-gsm-gprs-cellular-phone-moduleAdd Infrared Detection to Your Next Project The Temperature Infrared Sensor Grove is an infrared proximity sensor designed for presence sensing, short range detection, and touchless automation. It is a practical fit for makers, students, and engineers who want reliable sensor data in embedded builds. Key details include Wide supply voltage range: 3V~5V; Measure accuracy: 2C. Important: Infrared and optical readings change with target color, surface
