Mirobot
About the Mirobot PCB
Mirobot is an open source ESP8266 PCB design by mirobot, published on GitHub. It is a 2-layer board measuring 110 × 31.5 mm, with 42 components from 28 distinct parts.
Its main chip is the ESP8266-ESP-12, from the ESP8266 family. Other key parts include the phototransistor, PCF8591, 74HC595, ULN2803A and CH340G. By type, the board carries 10 resistors, 7 ICs, 6 capacitors, 5 connectors, 3 switches and 2 transistors.
From the project
The CAD files for the Mirobot PCB
This repository contains the KiCad files for the V3 Mirobot PCB.
It uses either the standard KiCAD component and footprint libraries or the libraries from https://github.com/bjpirt/custom-kicad-libs
Main components on the Mirobot
Mirobot bill of materials (BOM)
42 components, 28 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 2 | phototransistor | SIDE-LED | U1, U2 |
| 1 | PCF8591 | SO-16-L | U3 |
| 1 | 74HC595 | SO-16-N | U4 |
| 1 | ULN2803A | SO-18 | U5 |
| 1 | CH340G | SO-16-N | U6 |
| 1 | LD1117S33CTR | SOT-223 | U8 |
| 1 | ESP8266-ESP-12 | ESP-12 | M1 |
| 2 | S8050 | SOT-23 | Q1, Q2 |
| 1 | 12MHz | crystal_FA238-TSX3225 | X1 |
| 1 | USB_OTG | MOLEX_MICRO_USB | P1 |
| 2 | STEPPER | JST_XH-1x05 | P2, P3 |
| 1 | CONN_01X03 | Pin_Header_Straight_1x03 | P4 |
| 1 | CONN_01X04 | Pin_Header_Straight_1x04 | P5 |
| 1 | BATT | JST_PH_B3B-PH-K_03x2.00mm_Straight | BATT1 |
| 1 | 1A | Fuse_SMD1206_Reflow | F1 |
| 1 | SERVO | Pin_Header_Staggered_1x03 | PEN1 |
| 1 | BUZZER | BUZZER | SG1 |
| 2 | COLLISION | LEVER_SWITCH | SW1, SW2 |
| 1 | POWER_SWITCH | SMALL_SLIDE_SWITCH | SW3 |
| 2 | LED | SIDE-LED-REVERSED | D1, D2 |
Show 8 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | WS2812B | WS2812B | L1 |
| 1 | 470uF | c_elec_6.3x7.7 | C1 |
| 2 | 22pF | C_0603 | C2, C3 |
| 2 | 10uF | C_0805 | C6, C8 |
| 1 | 100uF | TantalC_SizeB_EIA-3528_Reflow | C7 |
| 7 | 10k | R_0603 | R1, R2, R3, R4, R5, R11, R12 |
| 2 | 20k | R_0603 | R6, R8 |
| 1 | 160R | R_0603 | R7 |
Mirobot design files
The KiCad project lives in the mirobot/mirobot-pcb repository on GitHub; these links point at the commit this page was built from.
- LayoutMirobot.kicad_pcb
Mirobot: common questions
What microcontroller does the Mirobot use?
The Mirobot is built around the ESP8266-ESP-12, from the ESP8266 family.
How big is the Mirobot PCB?
The Mirobot measures 110 × 31.5 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Mirobot?
42 components, from 28 distinct parts. The full bill of materials is listed on this page.
Where can I download the Mirobot design files?
From the mirobot/mirobot-pcb repository on GitHub, which has the KiCad layout; the links under Design files point to each one.
Can I use the Mirobot design in my own project?
The repository has no license, so all rights stay with mirobot. Use it as a reference, and ask the author before reusing the design.
Can I test firmware for the Mirobot without the hardware?
Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug ESP8266 firmware against it before you order a PCB.
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