LilyPad 328 ATmega328P 8MHz Arduino Compatible Wearable Main Board
$14.95 Inc. GST
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Description
🔧 LilyPad 328 ATmega328P 8MHz Wearable Main Board | AuscomTech
The LilyPad 328 is a compact Arduino-compatible microcontroller board designed specifically for wearable electronics, e-textiles and sewable embedded projects.
Featuring an ATmega328P running at 8MHz, the board provides programmable digital and analog control in a lightweight circular format. Large connection pads around the PCB make it easy to connect LEDs, sensors, switches and other modules using conductive thread or conventional wiring.
Its approximately 50mm diameter, thin PCB and flat rear surface make it ideal for integrating programmable electronics into clothing, costumes, textile projects and compact battery-powered prototypes.
⭐ Key Features
- ATmega328P Microcontroller – Proven 8-bit controller suitable for Arduino-compatible embedded development.
- 8MHz Clock Speed – Designed for low-voltage wearable and portable applications.
- 2V–5V Operation – Supports a range of low-voltage power sources commonly used in portable electronics.
- Large Sewable Pads – Oversized perimeter connections simplify wiring with conductive thread, clips or soldered leads.
- Arduino-Compatible Bootloader – Supports sketch development and uploading using a suitable programming interface.
- Automatic Reset Support – Designed to simplify programming when used with compatible serial hardware.
- Flat Rear Surface – Surface-mount programming connections help prevent protruding pins from interfering with textile mounting.
- Compact Circular PCB – Lightweight form factor designed for integration into garments and wearable projects.
📊 Technical Specifications
- Product Type: Wearable / e-textile microcontroller main board
- Microcontroller: ATmega328P
- Clock Speed: 8MHz
- Operating Voltage: 2V–5V
- Bootloader: Arduino-compatible bootloader
- Board Diameter: Approximately 50mm
- PCB Thickness: Approximately 0.8mm
- Connection Type: Large sewable perimeter pads
- Programming: External compatible serial programmer required
- Development Environment: Arduino-compatible
🧩 Typical Applications
- Wearable electronics
- E-textile projects
- Smart clothing and interactive garments
- LED clothing and costumes
- Conductive thread circuits
- Wearable sensor projects
- Educational electronics
- Compact embedded prototypes
⚠️ Important Notes
- This board operates at 8MHz; select the appropriate ATmega328 8MHz board configuration when programming.
- An external compatible serial programming interface is required for uploading sketches.
- Do not exceed the specified 2V–5V operating range.
- Conductive thread, battery, sensors and programming hardware are not included.
📦 Package Includes
- 1 × LilyPad 328 ATmega328P 8MHz Main Board
🔗 Recommended Accessories (Not Included)
- USB-to-Serial Programmer – for uploading firmware and Arduino sketches
- Conductive Thread – for creating sewable electrical connections
- Wearable LED Modules – for lighting and costume projects
- Low-Voltage Battery Holder – for portable power
📌 Code Examples & Usage – LilyPad 328 Main Board (ATmega328P)
📋 Overview
The LilyPad 328 is a wearable-focused Arduino-compatible board designed for e-textiles and soft electronics. It uses the ATmega328P microcontroller and features large sewable pads for conductive thread.
Ideal for:
-
Wearable electronics
-
E-textile projects
-
Interactive clothing
-
LED costumes
-
Educational STEM projects
📌 This board uses the same core MCU as an Arduino Uno, but in a wearable-friendly circular layout.
⚙ Key Features
-
MCU: ATmega328P
-
Clock speed: 8 MHz
-
Operating voltage: 5V
-
Logic level: 5V
-
Flash memory: 32 KB
-
SRAM: 2 KB
-
EEPROM: 1 KB
-
Sewable pads for conductive thread
-
Arduino IDE compatible
⚠ IMPORTANT – Programming & Power Notes
🚨 The LilyPad 328 does NOT have onboard USB
To upload code you will need:
-
USB-to-Serial adapter (FTDI, CP2102, CH340, etc.)
-
Correct wiring to the programming pads
🚨 Always disconnect power before sewing or modifying connections
🔌 Programming Connections (FTDI / USB-Serial)
| LilyPad Pad | USB-Serial Adapter |
|---|---|
| +5V | 5V |
| GND | GND |
| RX | TX |
| TX | RX |
| RST | DTR (via 0.1 µF capacitor) |
📌 If your adapter does not have DTR, press RESET on the LilyPad manually just before uploading.
🛠 Arduino IDE Setup
Board Selection
-
Board: Arduino Uno
(or Arduino LilyPad if available in your IDE)
Processor
-
ATmega328P (16 MHz)
Port
-
Select your USB-Serial adapter port
🧪 1️⃣ First Test – Blink an LED
✔ Confirms programming setup
✔ Safe first test before sewing components
🧵 2️⃣ Sewable LED Example
📌 Use conductive thread and keep stitches short to reduce resistance.
🧪 3️⃣ Button Input Example (Wearable Switch)
✔ Works well with fabric pushbuttons or snap fasteners
🔋 Powering the LilyPad
| Power Source | Notes |
|---|---|
| 5V FTDI adapter | Programming & testing |
| LiPo battery (via regulator) | Wearable use |
| Coin cell (limited) | Low-power projects only |
📌 Avoid high-current loads when using batteries.
🧠 Wearable Best Practices
✔ Keep conductive thread runs short
✔ Avoid thread crossing (risk of shorts)
✔ Secure knots with fabric glue
✔ Test circuit before sewing permanently
✔ Remove batteries before washing garments
🔧 Common Issues & Fixes
| Issue | Cause | Fix |
|---|---|---|
| Upload fails | RX/TX swapped | Swap connections |
| Needs manual reset | No DTR | Press reset before upload |
| Random resets | Weak power | Improve battery supply |
| LEDs dim | Thread resistance | Shorter stitches |
Additional information
| Weight | 30 g |
|---|---|
| Dimensions | 260 × 160 × 20 mm |
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