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it is slim and easy to fit into many project cases with a battery size of 18mm*65mm
the 16-channel 12-bit PWM Servo Driver only needs 2 pins to control 16 servos
blue of the display block (when the amount of electricity of the battery is full
Weight (gm) 8
Display accuracy: 0
SIM800L GPRS GSM Module Core Board Quad-band TTL Serial Port with the antenna MG945 it is slim and easyChip: SIM800L Voltage: 3. 7 4. 2 V Support networks: Global four band network Module size: 2. 5 cm x 2. 3 cm TTL serial port for serial port, you can connect directly to the microcontroller. No need for MAX232 Automatic start of the power module, connection network Signal lights on board all the way. Blinks slowly when there is a signal, flashes quickly when there is no signal. This is Small SIM800L GPRS GSM Module Micro SIM Card Core Board Quad band
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