[EOL] M5Stack GSM Module (M6315)

PRODUCT DETAILSDescription This is a 2G and industrial wireless communication module, integrated an GSM/GPRS module M6315, released by China Mobile, supported GPRS class12 and GPRS CS-1, CS-2, CS-3, CS-4 encode, M6315 has LCC package type, features tiny dimension, highly reliability, strong anti-interference capability. It can apply to the communication requirement on diversity industrial, electricity, petroleum, transportation, financial, etc In the GSM module scheme, we added more hardware resources, 1 reserved speaker- SPK1, 1 onboard speaker-SPK2, LEDs, 2 alternative antenna. M6315 is 2.8V power input, so in the hardware of GSM module, we added a Bidirectional Voltage-Level Translator (TXS0104E), to switch the power supply to 2.8V. This product is EOL now, we've released the updated version COM.GSM 2G Communication Module（SIM800C) which is fully compatible with this product.Power Operation: Power On: GPIO2 stay HIGH for 2s Power Off: GPIO2 stay