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Propagation Delay Time: 100 ns at 2V / 17 ns at 6V
The GSM-GPRS Shield is configured and controlled via its UART using simple AT commands
Instructables for OV7670 camera module tutorial with arduino
3 L/min @(25 ± 2)°C
RFID Reader (125Khz - UART) Soil Moisture Sensor Propagation Delay Time: 100 nsProduct Description (Professional) This 125KHz RFID Reader Module is a compact and reliable solution for reading low frequency RFID cards and tags. It supports EM4100 compatible cards and offers stable performance with an external antenna, providing a reading distance of up to 7cm. The module communicates via UART (TTL) interface, making it easy to integrate with microcontrollers such as Arduino, ESP32, and STM32. It is widely used in access control,
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