Today (12.06.2018) we have released a NEW firmware version 2.5 for the Irdroid USB Infrared Transceiver module. The new firmware introduces two new modes – separate transmit mode and separate receive mode. The Idea is that the sampling mode was sometimes causing problems on Android (USB Stalls/ USB Replug needed in some cases) and therefore we had to think about a solution backward compatible with the software for the other Operating Systems and at the same time stable on Android (the sampling mode remains unchanged/ the one initiated with the text command ‘S’ ).
To enter transmit mode the Irdroid USB App issues the text command “n” over serial and the module enters transmit mode. To enter receive mode the command used is ‘m’ and the module enters in receive mode. The other mode – sampling mode remains unchanged , initiated by the ‘S’ text command.
Flashing NEW Firmware to Irdroid USB IR Transceiver
The Irdroid USB Infrared transceiver does not have a bootloader and firmware update is only possible via a ICSP serial programmer. The firmware can be updated using MPLAB and a PIC programmer. In order to program the module you will have to remove the plastic cover. To attach to the module you wil also need a 5×1 male pin header. Attach the pin header to the PIC programmer , then connect to the USB Infrared transceiver board as shown on the pictures below. You need to provide power to the module with the PIC programmer. That option has to be ticked in the PIC programmer settings in MPLAB. The import the target HEX file and program the module. After a successful programming the Irdroid USB blue led should be lit.