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i have sim 808 and esp8266
i connected RX and TX pins together
problem is can receive nothing from sim808 so that it is unconnected
can low amperage cause this problem?
from external source i gave 3.8V to Li-on pin and G is shared with esp8266
used gpio 1(Tx) and gpio 3 (Rx)
i connected RX and TX pins together
problem is can receive nothing from sim808 so that it is unconnected
can low amperage cause this problem?
from external source i gave 3.8V to Li-on pin and G is shared with esp8266
used gpio 1(Tx) and gpio 3 (Rx)
