Casserole
About the Casserole PCB
Casserole is an open source PCB design by puddly, published on GitHub under the Apache-2.0 license. It is a 2-layer board measuring 50 × 55.4 mm, with 23 components from 16 distinct parts.
Other key parts include the AP6502. By type, the board carries 9 resistors, 5 capacitors, 3 transistors, 3 connectors, 1 IC and 1 switch.
From the project
Control GE appliances
- ESP32 dev kit (I use this one with built-in RGB LEDs but any should work) - 3.3v to 5V bus transceiver (TI SN74LVC2T45) - 5V regulator (ST LD1117, though just about any should work). I've read that the ESP32 can draw up to 600mA in 100ms bursts when in AP mode but ordinarily draws about 40mA.
- Regulate the 9V from the GE bus down to 5V and connect it both your ESP32's Vin pin and to the high voltage input of the bus transceiver. - Connect the ESP32's 3.3V pin to the low voltage input of the bus transceiver. - Tie together the ESP32's second UART's RX and TX pins (16 and 17) and connect…
Main components on the Casserole
Casserole bill of materials (BOM)
23 components, 16 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | AP6502 | Diodes_SO-8EP | U1 |
| 3 | Q_NMOS_DGS | SC-59_Handsoldering | Q1, Q2, Q3 |
| 1 | RJ45 | RJ45_Wuerth_7499010001A_Horizontal | J1 |
| 2 | Conn_01x19_Female | PinSocket_1x19_P2.54mm_Vertical | J2, J3 |
| 1 | SW_DIP_x06 | DIP-12_W7.62mm | SW1 |
| 1 | 10µH | L_Vishay_IFSC-1515AH_4x4x1.8mm | L1 |
| 1 | 10µF | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C1 |
| 1 | 6.8nF | C_1206_3216Metric_Pad1.33x1.80mm_HandSolder | C3 |
| 1 | 10nF | C_1206_3216Metric_Pad1.33x1.80mm_HandSolder | C4 |
| 2 | 22µF | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C5, C6 |
| 2 | ? | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R1, R9 |
| 3 | 47k | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R2, R4, R6 |
| 1 | 100k | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R3 |
| 1 | 6.8k | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R5 |
| 1 | 53.3k | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R7 |
| 1 | 10k | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R8 |
Casserole design files
The KiCad project lives in the puddly/casserole repository on GitHub; these links point at the commit this page was built from.
- Layoutboard/board.kicad_pcb
- Schematicboard/board.kicad_sch
Casserole: common questions
How big is the Casserole PCB?
The Casserole measures 50 × 55.4 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Casserole?
23 components, from 16 distinct parts. The full bill of materials is listed on this page.
Where can I download the Casserole design files?
From the puddly/casserole repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the Casserole design in my own project?
Yes, under the terms of its Apache-2.0 license, which puddly chose for the repository.