2 layers
OpenMQTTGatewayPCB
ebrithiljonas/OMG_PCB
All in One PCB for the OpenMQTTGateway Project
36 parts7GPL-3.0
2 layers49.5 × 81.6 mm
Eteigneur de tele V2
Pacotiber/Universal-TV-Remote-Control-PCBA universal infrared remote control built around a XIAO ESP32, designed to automatically turn off a TV after a set countdown — or instantly, on demand.
- Size
- 49.5 × 81.6 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 16
- Nets
- 18
- Pads
- 67
- Tracks, vias
- 262, 53
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 26 Sep 2026
- Updated
- 26 Sep 2026
Overview
Eteigneur de tele V2 is an open-source printed circuit board by Pacotiber, from the Pacotiber/Universal-TV-Remote-Control-PCB repository on GitHub. It is a 2-layer board of 49.5 × 81.6 mm with 16 parts on 18 nets, routed with 262 tracks and 53 vias.
It is built around the IR204-A-L. Its parts include 9 resistors, 2 ICs, 2 diodes, 2 switches and 1 transistor.
Main components
1README
README.md💣 Universal IR TV Remote — "Timer Bomb" Edition
A universal infrared remote control built around a XIAO ESP32, designed to automatically turn off a TV after a set countdown — or instantly, on demand.
📋 Overview
- ⏱️ A 30-minute timer counts down and shows the remaining time on an OLED screen.
- 📡 When the timer hits zero, the XIAO ESP32 automatically sends an IR POWER command to switch off the TV.
- 🔴 A second push button lets you turn off the TV instantly, without waiting for the timer.
- 👁️ A photoresistor (LDR) checks the ambient light after the command is sent to confirm whether the TV actually turned off.
- 🟢 Green LED → TV detected as off.
- 🔴 Red LED → TV still seems to be on.
- The IR LED is driven through a transistor for a stronger, more reliable signal.
The PCB itself is designed and shaped like a stick of dynamite — a small joke: the countdown reaches zero, but instead of an explosion, the TV just switches off. 😄
⚙️ How It Works
- Power on the device — the timer starts automatically at 30:00.
- The remaining time is displayed live on the OLED screen.
- At any point, press the instant-off button to send the IR power command right away.
- Otherwise, once the timer reaches 0, the IR command is sent automatically.
- The LDR reads the ambient brightness and lights up the green or red LED depending on whether the TV appears off.
🔧 Main Components
| Component | Role |
|---|---|
| Seeed XIAO ESP32 | Main microcontroller |
| OLED display (I2C, 0.91") | Shows the countdown timer |
| IR LED + transistor (BC108) | Sends the IR POWER command |
| Photoresistor (LDR) | Detects TV screen brightness |
| RGB LED | Status indicator (TV off / TV on) |
| 2x push buttons | Instant shutdown / control |
| Custom PCB (KiCad) | Bomb-shaped board hosting all components |
📷 Photos
Real circuit:
PCB (KiCad layout):
3D view:
Parts
16| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | 10k | Resistor_SMD:R_0805_2012Metric | R4, R5, R6, R10 |
| 3 | 100 | Resistor_SMD:R_0805_2012Metric | R8, R11, R12 |
| 2 | SW_Push | MaLib:PTS526SK15SMTR2LFS | SW1, SW2 |
| 1 | 29 | Resistor_SMD:R_0805_2012Metric | R2 |
| 1 | BC108 | MaLib:SOT-23-3 | Q1 |
| 1 | ER_OLEDM0.91_1x-I2C | MaLib:SSD1306_module | U2 |
| 1 | IR204A | LED_THT:LED_D3.0mm_IRBlack | D2 |
| 1 | LED_ARGB | LED_THT:LED_D5.0mm-4_RGB_Wide_Pins | D1 |
| 1 | R_Photo | OptoDevice:R_LDR_10x8.5mm_P7.6mm_Vertical | R9 |
| 1 | XIAO-Add-On | MaLib:XIAO-ESP32S3-DIP | U1 |
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Questions
How big is the Eteigneur de tele V2 PCB?
It measures 49.5 × 81.6 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Eteigneur de tele V2 use?
16 parts, built around the IR204-A-L. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the Eteigneur de tele V2 KiCad files?
From the Pacotiber/Universal-TV-Remote-Control-PCB repository on GitHub, at the commit this page was made from: the board is eteigneur de tele V2.kicad_pcb and its schematic eteigneur de tele V2.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Eteigneur de tele V2 design in my own project?
Its repository states no licence, so its author keeps all rights: ask Pacotiber before reusing the design.