SmartDesk
About the SmartDesk PCB
SmartDesk is an open source ESP32 PCB design by daverowntree, published on GitHub. It is a 2-layer board measuring 176 × 100 mm, with 172 components from 69 distinct parts.
Its main chip is the ESP32-WROOM-32, from the ESP32 family. Other key parts include the MOC3020, AVRxxDA28, IS31FL3728-QFLS2-TR and LM1117-3.3. By type, the board carries 54 resistors, 38 capacitors, 36 diodes, 12 transistors, 12 connectors and 6 ICs.
From the project
I open sourced a design I made a few years back for a non-paying client. Use it as you see fit!
Main components on the SmartDesk
SmartDesk bill of materials (BOM)
172 components, 69 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | MOC3020 | MOC302X-SON6 | U1 |
| 1 | AVRxxDA28 | SOIC-28W_7.5x17.9mm_P1.27mm | U2 |
| 1 | dnf | MOC302X-SON6 | U3 |
| 1 | IS31FL3728-QFLS2-TR | QFN50P400X400X80-25N-D | U4 |
| 1 | LM1117-3.3 | SOT-223-lm1117 | U5 |
| 1 | ESP32-WROOM-32 | MODULE_ESP32-WROOM-32 | U6 |
| 1 | FOD817S | SOIC254P1016X385-4N | Q1 |
| 1 | BC847 | SOT-23 | Q2 |
| 4 | 2N7002 | SOT-23 | Q3, Q5, Q7, Q8 |
| 2 | dnf | SOT-23 | Q4, Q6 |
| 2 | MMBT2222ALT3G | SOT-23 | Q9, Q10 |
| 2 | BSS138 | SOT-23 | Q11, Q12 |
| 1 | 9SegMutualCapSlider | 9SegMutualCapSlider | X1 |
| 1 | Conn_01x03_Female | Bulgin-PX0580-PC | J1 |
| 3 | Conn_01x02_Female | TerminalBlock_Phoenix_MKDS-3-2-5.08_1x02_P5.08mm_Horizontal | J2, J3, J7 |
| 1 | Conn_01x02_Female | JST_PH_B2B-PH-K_1x02_P2.00mm_Vertical | J4 |
| 1 | Conn_01x03_Female | JST_PH_B3B-PH-K_1x03_P2.00mm_Vertical | J5 |
| 1 | Conn_02x05_Odd_Even | PinHeader_2x05_P2.54mm_Vertical | J6 |
| 1 | dnf | JST_PH_B2B-PH-K_1x02_P2.00mm_Vertical | J8 |
| 1 | AVR-UPDI-6 | PinHeader_2x03_P2.54mm_Vertical | J9 |
Show 49 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | Conn_02x05_Odd_Even | PinHeader_2x05_P2.54mm_Vertical_SMD | J10 |
| 1 | Conn_01x03_Female | PinHeader_1x03_P2.54mm_Vertical | J11 |
| 1 | Conn_01x08_Male | Pin_Header_Straight_2x04_Pitch2.54mm | J13 |
| 1 | Fuse | Bulgin-FX0321 | F1 |
| 1 | TE OJE-SH-105HM,000 | TE_OJE-SH-105HM | K1 |
| 1 | dnf | TE_OJE-SH-105HM | K2 |
| 1 | RAC03-05SK | CONV_RAC03-05SK | PS1 |
| 3 | Panel-tab-edge | mouse-bite-2mm-slot | PZ1, PZ2, PZ3 |
| 2 | SW_DPST | 2-1437565-8 | SW1, SW2 |
| 2 | TestPoint | TestPoint_Loop_D1.80mm_Drill1.0mm_Beaded | TP1, TP9 |
| 5 | KP-1608MGC | LED_0603_1608Metric | D1, D27, D28, D35, D36 |
| 6 | 1N4148W | D_SOD-323 | D2, D3, D4, D5, D6, D33 |
| 1 | ACST210-8B | DPAK228P987X240-3N | D7 |
| 1 | dnf | DPAK228P987X240-3N | D8 |
| 4 | KPTL-3216SURCK-01 | VARC3216X102N | D9, D10, D11, D12 |
| 12 | KPTL-3216SECK-01 | VARC3216X102N | D13, D14, D15, D16, D17, D18, D19, D20 +4 |
| 2 | KPTL-3216QBC-D-01 | VARC3216X102N | D21, D22 |
| 2 | KP-1608SRC | LED_0603_1608Metric | D29, D30 |
| 2 | dnf | LED_0603_1608Metric | D31, D32 |
| 1 | L-710A8CB/1GD | L-710A8CB | D34 |
| 2 | BLM18PG471SN1 | C_0603_1608Metric | FB1, FB2 |
| 5 | 100n | C_0603_1608Metric | C1, C8, C16, C30, C37 |
| 1 | 1n | C_0603_1608Metric | C2 |
| 3 | 10u | C_0805_2012Metric | C3, C33, C34 |
| 2 | dnf | B32921C3223M289 | C4, C5 |
| 2 | 1u | C_0603_1608Metric | C6, C38 |
| 1 | dnf | C_0603_1608Metric | C7 |
| 20 | 10n | C_0603_1608Metric | C9, C10, C11, C12, C13, C14, C15, C17 +12 |
| 1 | dnf | C_0805_2012Metric | C29 |
| 1 | 2u2 | C_0805_2012Metric | C32 |
| 1 | 220n | B32922C3224 | C35 |
| 1 | 10u | C_0603_1608Metric | C36 |
| 1 | 330R | R_0603_1608Metric | R1 |
| 3 | 100k | R_0603_1608Metric | R2, R3, R13 |
| 2 | 47k | R_0603_1608Metric | R4, R33 |
| 1 | 250R | R_0603_1608Metric | R5 |
| 5 | 4k7 | R_0603_1608Metric | R6, R34, R35, R53, R54 |
| 7 | 10k | R_0603_1608Metric | R7, R44, R47, R48, R49, R50, R51 |
| 1 | 380R | R_0603_1608Metric | R8 |
| 1 | 360R | R_0603_1608Metric | R9 |
| 7 | dnf | R_0603_1608Metric | R10, R11, R14, R38, R39, R42, R43 |
| 7 | 145R | R_0603_1608Metric | R12, R31, R32, R36, R37, R45, R46 |
| 9 | 3k3 | R_0603_1608Metric | R15, R16, R17, R18, R19, R20, R21, R22 +1 |
| 5 | 1k | R_0603_1608Metric | R24, R25, R26, R27, R28 |
| 1 | dnf | R_0805_2012Metric | R29 |
| 1 | dnf(1M) | R_0805_2012Metric | R30 |
| 1 | 1M | R_0603_1608Metric | R40 |
| 1 | 100R | R_1206_3216Metric | R41 |
| 1 | 0R | R_0603_1608Metric | R52 |
SmartDesk design files
The KiCad project lives in the daverowntree/SmartDesk repository on GitHub; these links point at the commit this page was built from.
SmartDesk: common questions
What microcontroller does the SmartDesk use?
The SmartDesk is built around the ESP32-WROOM-32, from the ESP32 family.
How big is the SmartDesk PCB?
The SmartDesk measures 176 × 100 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the SmartDesk?
172 components, from 69 distinct parts. The full bill of materials is listed on this page.
Where can I download the SmartDesk design files?
From the daverowntree/SmartDesk repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the SmartDesk design in my own project?
The repository has no license, so all rights stay with daverowntree. Use it as a reference, and ask the author before reusing the design.
Can I test firmware for the SmartDesk 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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