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ultra-remote (arduino-esp32 variant)

work in progress... stay tuned

preferring ESP-IDF? have a look at this: fast ESP32 WiFi remote control (ESP-IDF variant)

alt text alt text

what is it

  • a fast ESP32 WiFi remote control with buttons
  • various sizes are supported (currently 1 - 16 buttons)

project main objective

  • implement the fastest way possible to remote control a linux machine (including smartphones with Termux and Tasker) with an ESP32 device over WiFi

project status as of current git (see protocol output)

  • 220ms average time span between keypress (wakeup) to status (received from remote machine)
  • any pull requests to improve the current results are very welcome

basic functionality

  • wake up after key press
  • connect to WiFi
  • send an ascii command to a remote machine
  • receive status from the remote machine
  • go to deep sleep again

features

  • very fast (see project status)
  • very small (see profile picture)
  • easy to build (documentation will follow)
  • battery operated (CR123 A 3V)
  • OTAable (press key before inserting the battery)

runtime environment

  • access point hardware in use: Raspberry Pi 4 Model B Rev 1.4
  • access point software in use: debian version 11.6/ hostapd version 2:2.9.0-21
  • remote target software to control: ucspi-tcp version 1:0.88-6

build environment

how to build

  • setup Arduino-ESP32 as documented here

  • then

      git clone [email protected]:sp4rkie/ultra-remote-ino
  cd ultra-remote-ino
  make esp32-2 run

debug protocol output as of current git

    Entering deep sleep
    ets Jun  8 2016 00:22:57

    rst:0x5 (DEEPSLEEP_RESET),boot:0x13 (SPI_FAST_FLASH_BOOT)
    configsip: 0, SPIWP:0xee
    clk_drv:0x00,q_drv:0x00,d_drv:0x00,cs0_drv:0x00,hd_drv:0x00,wp_drv:0x00
    mode:DIO, clock div:2
    load:0x3fff0030,len:1184
    load:0x40078000,len:13104
    load:0x40080400,len:3036
    entry 0x400805e4
    +
    <TP01: 45>
    Boot number: 6
    SSID: NOT EXPLICIT, REUSING NVRAM
    <TP02: 91>
    ############################################################
    cmd: zp ^
    .......................
    stat: #[XX]#[0]#[0]#[xxx]#[0]#[0]
    <TP03: 212>                        # <-- STATUS reveived - 212ms overall elapsed time between keypress (wakeup) to status (received from remote machine)
    key RELEASED
    Entering deep sleep