2 layers99.1 × 99.1 mm
Power supply panelized
thebiguno/microcontroller-projects
A home for a bunch of microcontroller projects which don't warrant their own repos.
223 parts75
2 layers50 × 50 mm
Microcontroller projects
thebiguno/microcontroller-projects75A home for a bunch of microcontroller projects which don't warrant their own repos.
- Size
- 50 × 50 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 158
- Nets
- 107
- Pads
- 500
- Tracks, vias
- 0, 0
- Routed
- Not yet
- KiCad
- KiCad 4
- Created
- 20 Nov 2014
- Updated
- 6 Jul 2024
Overview
Microcontroller projects is an open-source printed circuit board by thebiguno, from the thebiguno/microcontroller-projects repository on GitHub. It is a 2-layer board of 50 × 50 mm with 158 parts on 107 nets.
It is built around the ATMEGA32U4-AU, WS2812 and MCP7940N-I/P. Its parts include 74 capacitors, 66 ICs, 8 resistors, 2 switches and 2 crystals. It belongs with the AVR (ATmega, ATtiny) boards of this library.
Main components
3
ATMEGA32U4-AU
QFP-44(10x10)-40℃~+85℃ 10bit 16MHz 1KB 2.5KB 2.7V~5.5V 26 32KB 8 Bit AVR Built-in FLASH QFP-44(10x10) Microcontrollers (MCU/MPU/SOC) ROHSMicrochip TechnologyMicrocontrollers (MCU/MPU/SOC)
WS2812
SMD5050-4P1.57mm 1000mcd 110mcd 120us 2kHz 3.7V~5.3V 300ns 320mcd 451nm 523nm 5mm 5mm 623nm 800Kbit/s Built-in power-on reset circuit、Built-in power-on reset circuit Top-mount SMD5050-4P RGB LEDs(Built-in IC) ROHSWorldsemiRGB LEDs(Built-In IC)
MCP7940N-I/P
DIP-8-40℃~+85℃ 1.2uA 1.2uA 1.8V~5.5V External I2C Temperature compensation、Backup power management and battery charging、InsideSRAM/NVRAM、Timestamp function、Programmable clock output、Alarm function、Power-off retention of registers、ESD/Overvoltage protection、Periodic interrupt output Yes DIP-8 Real Time Clocks ROHSMicrochip TechnologyReal Time Clocks
README
README.mdmicrocontroller-projects
A home for my microcontroller projects, including Stubby the Hexapod and others. It includes libraries for avr-gcc along with sample programs on how to use them, some KiCad modules, and the source code for a number of projects.
Some major projects include:
- Stubby the Hexapod (http://stubby.digitalcave.ca/stubby/) (Now extracted into its own repo at https://github.com/thebiguno/stubby)
- DrumMaster (http://drummaster.digitalcave.ca/drummaster/)
- Chiindii (http://chiindii.digitalcave.ca/chiindii/)
Some of the AVR libraries included here are:
- serial communications
- TWI (I2C), with support for master read / master write / slave read / slave write, plus callback functions for asyncronous communications
- reading data from a PS2 controller
- timer functions
- and much more
Parts
158| Qty | Value | Footprint | References |
|---|---|---|---|
| 65 | 0.1uF | Capacitors_SMD:C_0603 | C11, C12, C13, C14, C15, C16, C17, C18, C19, C20, C21, C22, C23, C24, C25, C26 +49 |
| 64 | WS2812 | DigitalCave:SK6812 | U10, U11, U12, U13, U14, U15, U16, U17, U18, U19, U20, U21, U22, U23, U24, U25 +48 |
| 6 | .1 uF | Capacitors_SMD:C_0603 | C5, C6, C7, C8, C9, C10 |
| 4 | 10k | Resistors_SMD:R_0603 | R5, R6, R7, R8 |
| 4 | MOUNTING_HOLE | Mounting_Holes:MountingHole_4mm_Pad | MP1, MP2, MP3, MP4 |
| 2 | 12pF | Capacitors_SMD:C_0603 | C1, C2 |
| 2 | 22 | Resistors_SMD:R_0603 | R1, R2 |
| 2 | 4k7 | Resistors_SMD:R_0603 | R3, R4 |
| 1 | 16 MHz 12pF | Crystals:Crystal_SMD_3225-4pin_3.2x2.5mm | X1 |
| 1 | 1uF | Capacitors_SMD:C_0603 | C3 |
| 1 | 32.768 kHz 12pF | Crystals:Crystal_C26-LF_d2.1mm_l6.5mm_Horizontal | X2 |
| 1 | ATMEGA32U4-AU | Housings_QFP:TQFP-44_10x10mm_Pitch0.8mm | U1 |
| 1 | HWB | DigitalCave:SW_6x3 | SW3 |
| 1 | MCP7940N | SMD_Packages:SOIC-8-N | U2 |
| 1 | RST | DigitalCave:SW_6x3 | SW4 |
| 1 | TVS_BIDIRECTIONAL_2CH | TO_SOT_Packages_SMD:TSOT-23 | D1 |
| 1 | USB_OTG | Connectors:USB_Mini-B | J1 |
Questions
How big is the Microcontroller projects PCB?
It measures 50 × 50 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Microcontroller projects use?
158 parts, built around the ATMEGA32U4-AU, WS2812 and MCP7940N-I/P. 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 Microcontroller projects KiCad files?
From the thebiguno/microcontroller-projects repository on GitHub, at the commit this page was made from: the board is projects/m8/kicad/m8.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Microcontroller projects design in my own project?
Its repository states no licence, so its author keeps all rights: ask thebiguno before reusing the design.
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