Step 2: Assembly

developer_board PCB Assembly

1. Attach the NFC tag. If you have an NFC tag sticker, stick it to the bottom of the base (on the inside) before putting in any of the other stuff.
   Tip: After flashing the software, you can write your personalized Web App URL to the NFC tag. Then anyone can tap their phone on the bottom of the lamp to instantly open the control app.
2. Verify your ESP32 pinout. Before soldering anything, double-check that your ESP32 dev board's pin layout matches the required diagram. i
   Important: The ESP32 is soldered onto the back of the PCB (the side without the LED silkscreen labels).
3. Solder all components onto the PCB. Everything is labeled on the PCB silkscreen — resistors, transistors, and LED positions.
   LED orientation note: On 3 of the RGB LED slots, the common anode pin is the 2nd pin from the left. On the other 3 slots, it is the 2nd pin from the right. Check the PCB silkscreen markings carefully.
4. Solder the 90° header pins onto the reverse side of the PCB (same side as the ESP32). These will be used to connect the TTP223 touch sensor.
5. Attach the TTP223 touch sensor. Solder it onto the 90° header pins so that:
   • The edges of the PCB and touch sensor line up
   • The touch-sensitive side faces outwards (away from the PCB)
   • It doesn't stick out from under or above the PCB
   Tip: After soldering, use wire cutters to cut the excess header pins flush with the TTP223's surface for a clean fit.
   Important: We strongly recommend flashing the software onto your ESP32 boards (see Step 3: Software) before assembling the lamps.
6. Insert the PCB into the 3D-printed base. Ensure the LEDs face upward. Align:
   • The ESP32's USB-C port with the dedicated hole in the base
   • The TTP223 sensor with its dedicated slot
   • The 4 M2.5 screw holes
7. Screw in the 4 M2.5 screws. The holes are self-tapping — no nuts needed.
8. Attach the diffuser. Place the diffuser over the base and apply a small amount of super glue to hold it in place.

blur_circular NeoPixel Assembly

Reference the NeoPixel schematic while wiring:

1. Attach the NFC tag. If you have an NFC tag sticker, stick it to the bottom of the base (on the inside) before putting in any of the other stuff.
   Tip: After flashing the software, you can write your personalized Web App URL to the NFC tag. Then anyone can tap their phone on the bottom of the lamp to instantly open the control app.
2. Wire the NeoPixel ring to the ESP32. Following the schematic:
   • VIN (ESP32) → VIN (NeoPixel Ring)
   • GND (ESP32) → GND (NeoPixel Ring)
   • D27 / GPIO 27 (ESP32) → DATA (NeoPixel Ring)
3. Wire the TTP223 touch sensor to the ESP32.
   • 3V3 (ESP32) → VIN (TTP223)
   • GND (ESP32) → GND (TTP223)
   • D4 / GPIO 4 (ESP32) → IO (TTP223)
   Tip: It's easier to solder header pins to the TTP223 first, then cut them flush with the surface of the TTP223, and then solder the wires onto the header pins.
4. Use heat shrink tubing (optional but recommended) to insulate all solder joints and prevent shorts.
   Important: We strongly recommend flashing the software onto your ESP32 boards (see Step 3: Software) before assembling the lamps.
5. Place the ESP32 into the 3D-printed case. Align:
   • The 4 holes on the ESP32 board with the 4 spokes of the 3D-printed case
   • The USB-C port with the dedicated hole in the case
   Tip: If the ESP32 dev board doesn't stay in place, use a small amount of hot glue or tape to keep it down.
6. Insert the TTP223 sensor into its dedicated slot in the base.
   Tip: If the sensor doesn't stay in place, use a small amount of hot glue, double-sided tape, or electrical tape to keep it secure.
7. Place the NeoPixel ring on top of the ESP32 in its dedicated space. Super glue it to the base if needed.
8. Attach the diffuser. Place the diffuser over the base and apply a small amount of super glue to hold it in place.