---
product_id: 49312103
title: "Bus Pirate TOL-12942 PCB, 3.6 A"
brand: "sparkfun"
price: "€ 0.17"
currency: EUR
in_stock: true
url: https://www.desertcart.fi/products/49312103-bus-pirate-tol-12942-pcb-3-6
store_origin: FI
region: Finland
---

# 0-5.5V voltage range Bootloader-enabled firmware updates Supports 7 protocols Bus Pirate TOL-12942 PCB, 3.6 A

**Brand:** sparkfun
**Price:** € 0.17
**Availability:** ✅ In Stock

## Summary

> 🚀 Debug Like a Pro, Connect Like a Boss

## Quick Answers

- **What is this?** Bus Pirate TOL-12942 PCB, 3.6 A by sparkfun
- **How much does it cost?** € 0.17 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.fi](https://www.desertcart.fi/products/49312103-bus-pirate-tol-12942-pcb-3-6)

## Best For

- sparkfun enthusiasts

## Why This Product

- Trusted sparkfun brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Voltage Flexibility:** Operate confidently across a broad 0-5.5V range, ensuring compatibility with a wide array of embedded devices.
- • **Compact & Lightweight:** At just 9.07g and pocket-sized, it’s the perfect on-the-go troubleshooting companion for busy professionals.
- • **Terminal Command Control:** Directly type commands into your PC terminal and watch the Bus Pirate translate them flawlessly into hardware signals.
- • **Universal Protocol Mastery:** Seamlessly interface with 1-wire, 2-wire, 3-wire, UART, I2C, SPI, and HD44780 LCD protocols for ultimate debugging versatility.
- • **Effortless Firmware Updates:** Stay ahead with a built-in bootloader that makes firmware upgrades smooth and hassle-free.

## Overview

The Bus Pirate v3.6a by Sparkfun is a compact, multi-protocol troubleshooting tool designed for embedded device communication. Supporting seven key protocols and a voltage range of 0-5.5V, it enables seamless debugging via terminal commands. Its bootloader allows easy firmware updates, making it an indispensable gadget for engineers and developers seeking efficient hardware interfacing.

## Description

The Bus Pirate v3.6a, created by Ian Lesnet, is a troubleshooting tool that communicates between a PC and any embedded device over 1-wire, 2-wire, 3-wire, UART, I2C, SPI, and HD44780 LCD protocols - all at voltages from 0-5.5VDC. This product eliminates a ton of early prototyping effort when working with new or unknown chips. Working with the Bus Pirate is simple and effective - type commands into a terminal on your computer, those commands are interpreted by the Bus Pirate and sent via the proper protocol. The Pirate will also interpret data sent from your embedded device back to your computer terminal. A big bonus is the bootloader installed on the PIC, which allows you to easily update the firmware and change the functionality of the board. The main components of the Bus Pirate are the PIC24FJ64 processor and a FT232RL USB-to-Serial chip. A Mini-B USB connector that has also been populated on the board, provides the power to the Bus Pirate and allows you to interact with via your PC. The major difference in this version of the Bus Pirate comes from the shrouded 0.1" pitch 2x5 pin header, which has been flipped around to help standardize this board. Additionally every pin on this header has been labelled, eliminating the need for a separate I/O pin description document like with earlier versions. This product is a collaboration with Ian Lesnet. A portion of each sales goes back to them for product support and continued development. Note: This version is a direct replacement for the original Bus pirate.

## Features

- The Bus Pirate v3.6a is a troubleshooting tool that communicates between a PC and any embedded device over 1-wire, 2-wire, 3-wire, UART, I2C, SPI, and HD44780 LCD protocols
- Type commands into a terminal on your computer, those commands are interpreted by the Bus Pirate and sent via the proper protocol.
- Voltages from 0-5.5VDC
- Bootloader for easy firmware updates

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Sparkfun |
| Part number | TOL-12942 |
| Item Weight | 9.07 g |
| Package Dimensions | 10.6 x 4.3 x 0.9 cm; 9.07 g |
| Item model number | 671 |
| Item Package Quantity | 1 |
| Included components | Bus Pirate 3.6a Troubleshooting Tool |
| Batteries included? | No |
| Batteries Required? | No |

## Images

![Bus Pirate TOL-12942 PCB, 3.6 A - Image 1](https://m.media-amazon.com/images/I/71gCm6ocVUL.jpg)
![Bus Pirate TOL-12942 PCB, 3.6 A - Image 2](https://m.media-amazon.com/images/I/71udiR+3-eL.jpg)

## Frequently Bought Together

- Bus Pirate 3.6a
- SparkFun Electronics CAB-09556 SparkFun Accessories Bus Pirate Cable
- A Set 10 pcs Red Logic Analyser Useful High Efficiency Clip Ideal Test Hook

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**Shop now:** [https://www.desertcart.fi/products/49312103-bus-pirate-tol-12942-pcb-3-6](https://www.desertcart.fi/products/49312103-bus-pirate-tol-12942-pcb-3-6)

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*Product available on Desertcart Finland*
*Store origin: FI*
*Last updated: 2026-01-22*