Microhope
expeyes·expeyes-programs·kuttyPy/hardware/microhope.kicad_pcb
About the Microhope PCB
Microhope is an open source AVR/Arduino PCB design by expeyes, published on GitHub. It is a 2-layer board measuring 70 × 40 mm, with 28 components from 16 distinct parts.
Its main chip is the ATMEGA32, from the AVR/Arduino family. Other key parts include the CH340G. By type, the board carries 9 capacitors, 6 connectors, 4 resistors, 2 ICs, 2 crystals and 2 diodes.
From the project
programs for expeyes and expeyes-junior
how to build all the programs: ------------------------------
some files are easily generated from sources and are not distributed in this repository.
In order to build all necessary files (including translations, and others), one can run make from the topmost directory.
Main components on the Microhope
Microhope bill of materials (BOM)
28 components, 16 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | ATMEGA32 | DIP-40__600 | U1 |
| 1 | CH340G | SOIC-16_3.9x9.9mm_Pitch1.27mm | U2 |
| 1 | 8MHz | Crystal_HC49-U_Vertical | X1 |
| 1 | 12M | xtl-3225-3pin | X2 |
| 1 | USB | USB_Micro-B-THsupport-2 | J1 |
| 4 | CONN_10 | Pin_Header_Straight_1x10-oval | P1, P3, P4, P5 |
| 1 | CONN_5 | myPin_Header_Straight_1x05 | P6 |
| 1 | 0.5A | Fuse-1206-1812 | F1 |
| 1 | PCRST | myPin_Header_Straight_1x02 | JP1 |
| 1 | RESET | myPin_Header_Straight_1x02 | SW1 |
| 2 | LED | C_0805 | D1, D2 |
| 2 | 15pF | C_0805 | C1, C2 |
| 6 | .1u | C_0805 | C3, C4, C5, C6, C7, C8 |
| 1 | 1u | C_0805 | C9 |
| 1 | 10K | R_0805 | R1 |
| 3 | 5K1 | R_0805 | R2, R3, R4 |
Microhope design files
The KiCad project lives in the expeyes/expeyes-programs repository on GitHub; these links point at the commit this page was built from.
Microhope: common questions
What microcontroller does the Microhope use?
The Microhope is built around the ATMEGA32, from the AVR/Arduino family.
How big is the Microhope PCB?
The Microhope measures 70 × 40 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Microhope?
28 components, from 16 distinct parts. The full bill of materials is listed on this page.
Where can I download the Microhope design files?
From the expeyes/expeyes-programs repository on GitHub, which has the KiCad layout; the links under Design files point to each one.
Can I use the Microhope design in my own project?
The repository has no license, so all rights stay with expeyes. Use it as a reference, and ask the author before reusing the design.
Can I test firmware for the Microhope without the hardware?
Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug AVR/Arduino firmware against it before you order a PCB.
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