40pin PICMCU
ExploreEmbedded·Explore-Ultra-PIC-Dev-Kit·Hardware_40pin_PICMCU/40pin_PICMCU.kicad_pcb
About the 40pin PICMCU PCB
40pin PICMCU is an open source PCB design by ExploreEmbedded, published on GitHub. It is a 2-layer board measuring 40 × 75 mm, with 20 components from 12 distinct parts.
Other key parts include the 16F877A. By type, the board carries 6 connectors, 4 capacitors, 3 diodes, 3 resistors, 1 IC and 1 crystal.

Main components on the 40pin PICMCU
40pin PICMCU bill of materials (BOM)
20 components, 12 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 16F877A | DIP-40__600_ELL | U1 |
| 1 | 20Mhz | HC-49V | X1 |
| 4 | CONN_10 | SIL-10 | P1, P2, P3, P4 |
| 1 | CONN_7 | SIL-7 | P5 |
| 1 | ICSP | SIL-6 | P6 |
| 1 | JUMPER | SIL-2 | JP1 |
| 1 | rst | SW_PUSH_SMALL_2pin_xl | SW1 |
| 3 | LED | SM1206 | D1, D2, D3 |
| 2 | 22pF | SM1206 | C1, C2 |
| 2 | 0.1uF | SM1206 | C3, C4 |
| 1 | 10K | SM1206 | R1 |
| 2 | R | SM1206 | R2, R3 |
40pin PICMCU design files
The KiCad project lives in the ExploreEmbedded/Explore-Ultra-PIC-Dev-Kit repository on GitHub; these links point at the commit this page was built from.
40pin PICMCU: common questions
How big is the 40pin PICMCU PCB?
The 40pin PICMCU measures 40 × 75 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the 40pin PICMCU?
20 components, from 12 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.
Where can I download the 40pin PICMCU design files?
From the ExploreEmbedded/Explore-Ultra-PIC-Dev-Kit repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.
Can I use the 40pin PICMCU design in my own project?
The repository has no license, so all rights stay with ExploreEmbedded. Use it as a reference, and ask the author before reusing the design.