Tasmota/lib/lib_div/ams/hexutils.cpp

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#include "hexutils.h"
String AMS_toHex(uint8_t* in) {
return AMS_toHex(in, sizeof(in)*2);
}
String AMS_toHex(uint8_t* in, uint16_t size) {
String hex;
for(int i = 0; i < size; i++) {
if(in[i] < 0x10) {
hex += '0';
}
hex += String(in[i], HEX);
}
hex.toUpperCase();
return hex;
}
void AMS_fromHex(uint8_t *out, String in, uint16_t size) {
for(int i = 0; i < size*2; i += 2) {
out[i/2] = strtol(in.substring(i, i+2).c_str(), 0, 16);
}
}