A remote control receiver with many functions based on cheap hardware.
For 2 € you can buy on ebay a ST-Link emulator or a STM32F103 development board, manufactured in China usually. Onto the STM32F103 mikrocontroller on it an open source firmware with many functions will be flashed.
- connection via USB
- registers as USB HID Keyboard device and appears as /dev/hidraw or "Custom HID device", no drivers needed
- transfers the data via USB2 in hardware with fullspeed
- IR receiver (ca. 40 protocols decoded in hardware)
- switch PC on via remote control from S3 (STR) and S4 (STD) via USB or from S3, S4 and S5 (SoftOff) via motherboard-switch (+5V needed, on USB or from PSU or motherboard)
- switch PC on via build in timer from S3 (STR) and S4 (STD) via USB or from S3, S4 and S5 (SoftOff) via motherboard-switch (+5V needed, on USB or from PSU or motherboard)
- IR sender (ca. 40 protocols)
- the configuration is stored in the emulated eeprom
- bootloader for comfortable firmware update
- support for macros(*)
A macro makes it possible to send a sequence of IR commands via the send diode on reception of a trigger. macroslot0 is the trigger, macroslot1 … macroslot7 are the commands to be sent.
(*) only RP2xxx
- GUI config-tool stm32kbdIRconfig_gui for configuration: set, get and reset wakeups, irdata, keys, alarm time, repeat. It is possible to program wakeups and irdata via remote control. Create the eeprom map with remote control and mouse. Comprehensive debug messages. Firmware update.
- interactive command line program stm32kbdIRconfig for configuration: set, get and reset wakeups, macros, irdata, keys, alarm time, repeat and send IR. It is possible to program wakeups, macros and irdata via remote control.
- stm32kbdIRalarm for setting and reading alarm time via script
- stm32FWupgrade for firmware update on the command line
- GUI config-tool stm32kbdIRconfig_gui (same as linux)
- interactive command line programm stm32kbdIRconfig (same as linux)
- stm32kbdIRalarm for setting and reading alarm time via script
- stm32FWupgrade for firmware update on the command line
The stm32kbdIRconfig_gui can be used for building an eeprom map with the keyboard and the remote control.
There are three methods.
(1)
First method: Click a line, click "set by remote - keyboard + irdata", press the modifier or key on your keyboard, press the key if the first was a modifier, press the button on the remote.
The red text below the keyboard + irdata button guides you through the process.
Repeat this as often as needed.
(2)
Second method: Open the template keymap. Remove lines with keys you don't need.
Click the line with the key's name, click "set by remote - irdata", press the button on the remote - repeat this for all buttons.
Click "flash eeprom".
(3)
Third method: Click a line, click "set by remote - irdata", press the button on the remote.
Click a line, enter key (and modifier), click "set - key".
Repeat this as often as needed.
If you press the keyboard + irdata-button twice, you can test your keyboard keys and on Windows even already configured buttons on the remote.
On Linux you can test the eeprom map with evtest: After pressing the button on the remote, evtest should show the corresponding key.
It is recommended to start with a fresh eeprom by pressing "eeprom map - reset eeprom".
If the wakeup is empty, the first received IR data will be stored into the wakeup.
Change wakeup with stm32kbdIRconfig_gui: press set by remote - wakeup, press button on remote control.
Important for testing: wakeup happens only, if the PC is powered off.
If the PC is powered on, only the key is send to the PC (so you can use the same button for power on and power off).
The sources are complete only after running the prepare script, the script downloads the IRMP sources, extracts and patches the sources. You have to download the ST sources manually, because you have to register unfortunately.
This makes it possible to put the patches under GPL, without interfering with the original licences.
It is easier to see, what has been changed, too.
Compile with arm-none-eabi-gcc.
See /STM32Fxxxxx/src/config.h.
Get the STM32 ST-Link Utility.
Connect
Programmer SWDIO -> IO
Programmer SWCLK -> CLK
Programmer GND -> G
Programmer 3V3 -> V3
File - Open File - boot.blackDev.bin (https://github.com/j1rie/STM32F103-bootloader/tree/master/binaries)
Target - Program & Verify (confirm a message about read out protection, if it appears)
https://github.com/j1rie/IRMP_STM32_KBD/wiki/Herstellungsprozess-Schwarze#bootloader-flashen
Disconnect from USB.
Linux: Start ./stm32FWupgrade ./2019-07-06_16-32_blackDev_BL_SC_jrie.bin
Windows: Start stm32FWupgrade.exe 2020-02-15_00-29_blueDev_BL_SC_jrie.bin
Attach to USB.
Instead of stm32FWupgrade you can use stm32IRconfig_gui.
https://github.com/j1rie/IRMP_STM32_KBD/wiki/Herstellungsprozess-Schwarze#firmware-flashen
Flashing with an USB-serial-TTL is possible on the developer boards.
Flashing over USB is possible on those boards, which support it.
See https://www.mikrocontroller.net/articles/IRMP_auf_STM32_-_ein_USB_IR_Empf%C3%A4nger/Sender/Einschalter_mit_Wakeup-Timer#Firmware_Flashing
See /eventlircd/README.
Frank Meyer for IRMP. [1]
Uwe Becker for adapting IRMP to the STM32F4xx and his USB-HID for the STM32F4xx. [2]
His work helped me in getting started with the STM32F105.
Andrew Kambaroff for his USB-HID for the STM32F103. [3]
His work helped me in getting started with the STM32F103.
Ole Ernst for code review, linux Makefile and linux download-extract-patch-script and new protocol. [4]
Manuel Reimer for gcc-4.9 fix, SimpleCircuit and check if host is running. [5]
[1] https://www.mikrocontroller.net/articles/IRMP
[2] http://mikrocontroller.bplaced.net/wordpress/?page_id=744
[3] https://habr.com/post/208026/
[4] https://github.com/olebowle
[5] https://github.com/M-Reimer
For comments, questions, suggestions go to https://www.vdr-portal.de/forum/index.php?thread/132289-irmp-auf-stm32-ein-usb-hid-keyboard-ir-empf%C3%A4nger-einschalter-mit-wakeup-timer/
https://github.com/j1rie/IRMP_STM32_KBD/wiki/Herstellungsprozess-Schwarze
https://www.mikrocontroller.net/articles/IRMP_auf_STM32_%E2%80%93_stark_vereinfachte_Bauanleitung
https://www.mikrocontroller.net/articles/IRMP_auf_STM32_-_Bauanleitung
Much fun with IRMP on STM32!
Copyright (C) 2018-2024 Jörg Riechardt