HardLabs

OpenCritter DevKit1

SuperMechaCow·OpenCritter·hardware/oc_DevKit1/opencritter.kicad_pcb

OpenCritter DevKit1 PCB layout, top view — open source ESP8266 board by SuperMechaCow

About the OpenCritter DevKit1 PCB

OpenCritter DevKit1 is an open source ESP8266 PCB design by SuperMechaCow, published on GitHub under the MIT license. It is a 2-layer board measuring 80 × 44 mm, with 52 components from 33 distinct parts.

Its main chip is the ESP8266EX, from the ESP8266 family. Other key parts include the ATMEGA328P-AU and CAT250. By type, the board carries 12 resistors, 11 connectors, 8 capacitors, 6 switches, 3 ICs and 3 jumpers.

It belongs with the iot & wireless designs in this gallery.

From the project

An open source digital pet

OpenCritter is an open source digital pet. The software is totally free, and the hardware easy to obtain.

Anyone is invited to work on the project for as long as they stick to the following principles:

- OpenCritter is for all levels of skill and expertise. Novices should be able to build their own from scratch, and experts can lead the project development. - OpenCritter is all-ages and gender nuetral. - OpenCritter is for makers and hackers. Create and destroy! - Mods are encouraged! But anything that conflicts with the "core experience" of the game should be listed as a new branch.

Main components on the OpenCritter DevKit1

ATMEGA328P-AUESP8266EXCAT250

OpenCritter DevKit1 bill of materials (BOM)

52 components, 33 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
ATMEGA328P-AU
U1
1
ESP8266EX
U2
1
CAT250
U3
1
Motor
M1
1
16Mhz
Y1
1
40Mhz
Y2
1
ESP UART
J1
1
328 SPI
J2
1
OLED
J3
1
328 GPIO
J4
4
I2C BUS
J5, J7, J8, J9
1
328 UART
J6
1
ESP Header
J10
1
ESP GPIO
J11
1
Antenna
AE1
1
Battery_Cell
BT1
1
Buzzer
BZ1
1
RxX
JP1
1
TxX
JP2
1
Enable
JP3
Show 13 more
QtyPartRefs
1
ButA
SW1
1
ButB
SW2
1
ButC
SW3
1
RESET
SW4
1
GPIO0
SW5
1
RESET
SW6
1
LED
D1
2
L
L1, L2
8
C
C1, C2, C3, C4, C5, C6, C7, C8
9
10K
R1, R2, R3, R4, R5, R6, R7, R11 +1
1
200
R8
1
470
R9
1
12K
R10

OpenCritter DevKit1 design files

The KiCad project lives in the SuperMechaCow/OpenCritter repository on GitHub; these links point at the commit this page was built from.

OpenCritter DevKit1: common questions

What microcontroller does the OpenCritter DevKit1 use?

The OpenCritter DevKit1 is built around the ESP8266EX, from the ESP8266 family.

How big is the OpenCritter DevKit1 PCB?

The OpenCritter DevKit1 measures 80 × 44 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the OpenCritter DevKit1?

52 components, from 33 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 OpenCritter DevKit1 design files?

From the SuperMechaCow/OpenCritter repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.

Can I use the OpenCritter DevKit1 design in my own project?

Yes, under the terms of its MIT license, which SuperMechaCow chose for the repository.

Can I test firmware for the OpenCritter DevKit1 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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