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Olimex FOSDEM-85 ATtiny85 Development Board Schematic
Schematic for the Olimex FOSDEM-85 development board featuring the Microchip ATtiny85-20PU MCU, USB-B interface, and battery support.
Overview
This document provides the circuit schematic for the Olimex FOSDEM-85, a compact development board based on the Microchip ATtiny85-20PU microcontroller. The design includes a USB-B connector for interface and power, dual LED indicators for power and status, and support for a 3.7V battery. The circuit utilizes 1N4148 signal diodes and a DW02S battery protection IC. Designed by Olimex Ltd, this hardware is open-source under the Creative Commons Attribution-ShareAlike 3.0 Unported License.
Use Cases
- Prototyping with ATtiny85 microcontrollers
- USB-powered embedded device design
- Battery-operated low-power projects
- Educational hardware development
Topics
Olimex
FOSDEM-85
ATtiny85-20PU
schematic
Microchip
USB-B
DW02S
1N4148
development board
open-source hardware
Referenced Parts
| ATTINY85-20PU | Microchip | ATtiny85-20PU+(DIL-8)+2*(HR1x4) |
| 1N4148 | Vishay | 1N4148/DO35 |
| DW02S | Fortune Semiconductor | DW02S |