GE-Opal-Reverse-Engineering-Project
SomeAspy·GE-Opal-Reverse-Engineering-Project·hardware/RoughSketch-ArduinoNanoESP32/RoughSketch-ArduinoNanoESP32.kicad_sch

About the GE-Opal-Reverse-Engineering-Project PCB
GE-Opal-Reverse-Engineering-Project is an open source AVR/Arduino PCB design by SomeAspy, published on GitHub under the GPL-3.0 license. It is a board, with 27 components from 20 distinct parts.
Its main chip is the Arduino_Nano_ESP32, from the AVR/Arduino family. By type, the board carries 7 diodes, 5 modules, 5 transistors, 3 switches, 2 relays and 2 resistors.
From the project
This repository documents all my attempts to make the GE Opal 2 not kill itself
This repository documents all my attempts to make the GE Opal 2 not kill itself (More specifically, the *GE Profile:tm: Opal:tm: 2.0 Ultra Nugget Ice Maker )
Important context to a lot of frustration here: This is a $500 dollar ice machine. It has a lifespan of 6 months to 1 year
I have quite literally dumped hundreds of dollars into this project. Some of the costs are prototyping modules, connectors, electronics components, and OEM parts for the machine.
Main components on the GE-Opal-Reverse-Engineering-Project
GE-Opal-Reverse-Engineering-Project bill of materials (BOM)
27 components, 20 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | Arduino_Nano_ESP32 | Arduino_Nano | A1 |
| 2 | Motor_AC | M1, M2 | |
| 1 | Fan | M3 | |
| 1 | Pump | M4 | |
| 5 | Q_NMOS_GDS | NXP_LQFN-48-1EP_7x7mm_P0.5mm_EP3.5x3.5mm_16xMask0.45x0.45_ThermalVias | Q1, Q2, Q3, Q4, Q5 |
| 1 | Conn_01x04_Pin | DIP-20_W7.62mm | J1 |
| 2 | Relay_SPST-NO | K1, K2 | |
| 1 | NEUT | MES1 | |
| 1 | LINE | MES2 | |
| 1 | Bin Switch | DIP-24_W7.62mm | SW1 |
| 1 | Float High | SW_SPST_CK_KMS2xxGP | SW2 |
| 1 | Float Low | SW_SPST_CK_KMS2xxGP | SW3 |
| 1 | D_Photo | D1 | |
| 1 | Bin LED | D2 | |
| 1 | LoS IR LED | D3 | |
| 1 | D_Schottky | D_DO-35_SOD27_P7.62mm_Horizontal | D4 |
| 2 | D | D5, D7 | |
| 1 | UV-C LED | D6 | |
| 1 | 1KΩ | R1 | |
| 1 | 33Ω | R2 |
GE-Opal-Reverse-Engineering-Project design files
The KiCad project lives in the SomeAspy/GE-Opal-Reverse-Engineering-Project repository on GitHub; these links point at the commit this page was built from.
GE-Opal-Reverse-Engineering-Project: common questions
What microcontroller does the GE-Opal-Reverse-Engineering-Project use?
The GE-Opal-Reverse-Engineering-Project is built around the Arduino_Nano_ESP32, from the AVR/Arduino family.
How many components are on the GE-Opal-Reverse-Engineering-Project?
27 components, from 20 distinct parts. The full bill of materials is listed on this page.
Where can I download the GE-Opal-Reverse-Engineering-Project design files?
From the SomeAspy/GE-Opal-Reverse-Engineering-Project repository on GitHub, which has the schematic; the links under Design files point to each one.
Can I use the GE-Opal-Reverse-Engineering-Project design in my own project?
Yes, under the terms of its GPL-3.0 license, which SomeAspy chose for the repository.
Can I test firmware for the GE-Opal-Reverse-Engineering-Project 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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