Problem
IRSend with the comma format (FUJITSU_AC,128,0x1463001010FE0930800100000000202F) fails with:
Error:IR:IRSend currently only protocol with up to 64bits are supported
This blocks all AC/HVAC protocols that require >64-bit packets (Fujitsu AC uses 128-bit).
Root cause
In drv_ir_new.cpp, IR_Send_Cmd() parses the hex data into a uint64_t via strtoll(), which naturally caps at 64 bits. For larger protocols, it returns CMD_RES_BAD_ARGUMENT.
The underlying IRRemoteESP8266 library already supports these protocols — IRsend has a byte-array overload:
bool send(const decode_type_t type, const uint8_t *state, const uint16_t nbytes);
Suggested fix
In the bits > 64 branch, instead of returning an error, parse the hex string into a byte array and call the byte-array overload:
if (bits <= 64) {
uint64_t data = strtoll(_data, &p, 16);
int repeats = strtol(p + 1, NULL, 10);
pIRsend->send(protocol, data, bits, repeats);
} else {
const char *hex = _data;
if (hex[0] == '0' && (hex[1] == 'x' || hex[1] == 'X')) hex += 2;
uint16_t nbytes = (bits + 7) / 8;
uint8_t buf[32];
for (uint16_t i = 0; i < nbytes && i < sizeof(buf); i++) {
char h[3] = { hex[i * 2], hex[i * 2 + 1], '\0' };
buf[i] = (uint8_t)strtol(h, NULL, 16);
}
pIRsend->send(protocol, buf, nbytes);
}The same approach would also unblock IRAC implementation in the future.
Environment
- Chip: BK7238
- Firmware: OpenBeken with
ENABLE_DRIVER_IRREMOTEESP
- Protocol: FUJITSU_AC (128-bit state packets, 56-bit power-off)
- IR receive/decode works perfectly (note: when it works. sometimes it breaks, increasing buffer to 500 helps but sometimes it still stops decoding incoming data) — only sending is blocked by the 64-bit limit
Workaround
Currently none. The only alternatives are using separate ESP hardware with Tasmota/ESPHome for IR sending, or patching the firmware manually.
Problem
IRSendwith the comma format (FUJITSU_AC,128,0x1463001010FE0930800100000000202F) fails with:This blocks all AC/HVAC protocols that require >64-bit packets (Fujitsu AC uses 128-bit).
Root cause
In
drv_ir_new.cpp,IR_Send_Cmd()parses the hex data into auint64_tviastrtoll(), which naturally caps at 64 bits. For larger protocols, it returnsCMD_RES_BAD_ARGUMENT.The underlying IRRemoteESP8266 library already supports these protocols —
IRsendhas a byte-array overload:Suggested fix
In the
bits > 64branch, instead of returning an error, parse the hex string into a byte array and call the byte-array overload:The same approach would also unblock
IRACimplementation in the future.Environment
ENABLE_DRIVER_IRREMOTEESPWorkaround
Currently none. The only alternatives are using separate ESP hardware with Tasmota/ESPHome for IR sending, or patching the firmware manually.