Updated LOAF
About the Updated LOAF PCB
Updated LOAF is an open source ESP32 PCB design by OSHE-Github, published on GitHub. It is a 2-layer board measuring 393.7 × 165.1 mm, with 64 components from 19 distinct parts.
Its main chip is the ESP32-DEVKITC-32E, from the ESP32 family. Other key parts include the MCP2561FD-E/P. By type, the board carries 24 resistors, 19 diodes, 13 connectors, 2 ICs, 2 jumpers and 2 capacitors.
From the project
Creating an HMI for the BREAD Ecosystem, as well as a conveyor belt to be paired with the improved computation capabilities of the BREAD system.
Main components on the Updated LOAF
Updated LOAF bill of materials (BOM)
64 components, 19 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | ESP32-DEVKITC-32E | MODULE_ESP32-DEVKITC-32E | U1 |
| 1 | MCP2561FD-E/P | PDIP8_300MC_MCH | U2 |
| 8 | 10018783-10200TLF | AMPHENOL_10018783-10200TLF | J1, J2, J4, J5, J6, J7, J8, J10 |
| 1 | ATX-24 | Molex_Mini-Fit_Jr_5566-24A_2x12_P4.20mm_Vertical | J3 |
| 1 | Screw_Terminal_01x02 | TerminalBlock_Phoenix_MKDS-1,5-2_1x02_P5.00mm_Horizontal | J9 |
| 1 | Conn_02x03_Odd_Even | PinHeader_2x03_P2.54mm_Vertical | J11 |
| 1 | Screw_Terminal_01x03 | TerminalBlock_Phoenix_MKDS-1,5-3-5.08_1x03_P5.08mm_Horizontal | J12 |
| 1 | MSD-11-A | CUI_MSD-11-A | J14 |
| 2 | DIN_Rail_Adapter | DINRailAdapter_3xM3_PhoenixContact_1201578 | DRA1, DRA2 |
| 1 | Jumper_2_Bridged | PinHeader_2x01_P2.54mm_Vertical | JP1 |
| 1 | Jumper_3_Bridged12 | PinHeader_1x03_P2.54mm_Vertical | JP2 |
| 19 | LED | LED_D3.0mm | D1, D2, D3, D4, D5, D6, D7, D8 +11 |
| 1 | 4700pF | C_1206_3216Metric_Pad1.33x1.80mm_HandSolder | C1 |
| 1 | 10uF_t | C_1206_3216Metric_Pad1.33x1.80mm_HandSolder | C2 |
| 2 | 60 | R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R1, R3 |
| 1 | 120 | R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R2 |
| 1 | 300 | R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R4 |
| 19 | R_US | R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R5, R6, R7, R8, R9, R10, R11, R12 +11 |
| 1 | 10k | R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R24 |
Updated LOAF design files
The KiCad project lives in the OSHE-Github/Smart-BREAD repository on GitHub; these links point at the commit this page was built from.
Updated LOAF: common questions
What microcontroller does the Updated LOAF use?
The Updated LOAF is built around the ESP32-DEVKITC-32E, from the ESP32 family.
How big is the Updated LOAF PCB?
The Updated LOAF measures 393.7 × 165.1 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Updated LOAF?
64 components, from 19 distinct parts. The full bill of materials is listed on this page.
Where can I download the Updated LOAF design files?
From the OSHE-Github/Smart-BREAD repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the Updated LOAF design in my own project?
The repository has no license, so all rights stay with OSHE-Github. Use it as a reference, and ask the author before reusing the design.
Can I test firmware for the Updated LOAF without the hardware?
Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug ESP32 firmware against it before you order a PCB.
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