Quad direct
About the Quad direct PCB
Quad direct is an open source ESP32 PCB design by ajwock, published on GitHub. It is a 2-layer board measuring 27.7 × 50.6 mm, with 37 components from 24 distinct parts.
Its main chip is the esp32c3_boardout, from the ESP32 family. Other key parts include the TPS62A02APDDCR, SD03C-7 and USB3090-30-A. By type, the board carries 10 ICs, 10 resistors, 8 capacitors, 5 diodes, 2 switches and 1 inductor.
It belongs with the robotics & motion designs in this gallery.
From the project
Quadcopter designed and programmed thoroughly from scratch
Main components on the Quad direct
Quad direct bill of materials (BOM)
37 components, 24 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | TPS62A02APDDCR | SOT95P280X110-6N | U1 |
| 1 | esp32c3_boardout | esp32c3_boardout | U2 |
| 6 | SD03C-7 | SOD2513X120N | U3, U5, U6, U7, U8, U10 |
| 1 | USB3090-30-A | USB309030A | U4 |
| 1 | 4pin_header | 4-rightangle-smt | U9 |
| 1 | ESP32-C3-MINI-1-H4X | ESP32C3MINI1H4X | 1111 |
| 2 | SW_Push | SW_Push_1P1T_NO_6x6mm_H9.5mm | SW1, SW2 |
| 1 | LED | LED_0603_1608Metric_Pad1.05x0.95mm_HandSolder | D1 |
| 2 | LED | LED_0603_1608Metric | D2, D4 |
| 2 | D_Schottky | SM6F22AY | D3, D5 |
| 1 | L | L_0603_1608Metric | L1 |
| 1 | 10u | C_0603_1608Metric | C1 |
| 2 | 1u | C_0603_1608Metric | C2, C6 |
| 2 | .1u | C_0603_1608Metric | C3, C7 |
| 1 | 10uF | 0603_cap | C4 |
| 1 | 10pf | 0603_cap | C5 |
| 1 | 22uF | 0603_cap | C8 |
| 4 | 10k | R_0603_1608Metric | R1, R2, R3, R4 |
| 1 | 6.8k | 0603_resistor | R5 |
| 1 | 470k | 0603_resistor | R6 |
Show 4 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 220k | 0603_resistor | R7 |
| 1 | 47k | 0603_resistor | R8 |
| 1 | 2.2k | 0603_resistor | R9 |
| 1 | 4.7k | 0603_resistor | R10 |
Quad direct design files
The KiCad project lives in the ajwock/quadcopter repository on GitHub; these links point at the commit this page was built from.
Quad direct: common questions
What microcontroller does the Quad direct use?
The Quad direct is built around the esp32c3_boardout, from the ESP32 family.
How big is the Quad direct PCB?
The Quad direct measures 27.7 × 50.6 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Quad direct?
37 components, from 24 distinct parts. The full bill of materials is listed on this page.
Where can I download the Quad direct design files?
From the ajwock/quadcopter repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the Quad direct design in my own project?
The repository has no license, so all rights stay with ajwock. Use it as a reference, and ask the author before reusing the design.
Can I test firmware for the Quad direct 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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