KediSavar
About the KediSavar PCB
KediSavar is an open source ESP32 PCB design by derdds, published on GitHub. It is a 2-layer board measuring 100 × 100 mm, with 83 components from 24 distinct parts.
Its main chip is the ESP32 25.4mm, from the ESP32 family. Other key parts include the ULN2003A, AQY212GZS and TS3552CS. By type, the board carries 44 resistors, 19 capacitors, 7 diodes, 5 ICs, 3 transistors and 2 connectors.
Main components on the KediSavar
KediSavar bill of materials (BOM)
83 components, 24 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 2 | ULN2003A | SOIC-16_3.9x9.9mm_P1.27mm | U1, U2 |
| 1 | AQY212GZS | SO-4_4.4x4.3mm_P2.54mm | U3 |
| 2 | TS3552CS | SOP-8_3.76x4.96mm_P1.27mm | U4, U5 |
| 1 | ~ | ESP32 25.4mm | A1 |
| 3 | AO3400A | SOT-23 | Q1, Q2, Q3 |
| 1 | Conn_02x20_Odd_Even | PinHeader_2x20_P2.54mm_Vertical | J1 |
| 1 | Screw_Terminal_01x10 | Wago 256 410 | J2 |
| 4 | SS14 | D_3220_8050Metric_Pad2.65x5.15mm_HandSolder | D1, D2, D3, D4 |
| 3 | LED | LED_0805_2012Metric_Pad1.15x1.40mm_HandSolder | D5, D6, D7 |
| 2 | 22uH | L_12x12mm_H8mm | L1, L2 |
| 7 | 100nF | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C1, C2, C3, C4, C5, C6, C7 |
| 2 | 22uF / 25v | C_1206_3216Metric_Pad1.33x1.80mm_HandSolder | C8, C9 |
| 2 | 0.1uF | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C10, C12 |
| 2 | 3.3nF | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C11, C13 |
| 4 | 10uF / 35-50v | C_1206_3216Metric_Pad1.33x1.80mm_HandSolder | C14, C15, C16, C18 |
| 2 | 10nF | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C17, C19 |
| 13 | 10k | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R1, R3, R5, R7, R9, R11, R13, R29 +5 |
| 8 | 1k | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R2, R4, R6, R8, R10, R12, R14, R42 |
| 14 | 330 | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R15, R16, R17, R18, R19, R20, R21, R22 +6 |
| 1 | 470 | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R27 |
Show 4 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 2 | 44.2k | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R28, R34 |
| 3 | 220 | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R36, R37, R38 |
| 2 | 2.2k | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R39, R40 |
| 1 | 100k | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R41 |
KediSavar design files
The KiCad project lives in the derdds/Esit-Internship repository on GitHub; these links point at the commit this page was built from.
KediSavar: common questions
What microcontroller does the KediSavar use?
The KediSavar is built around the ESP32 25.4mm, from the ESP32 family.
How big is the KediSavar PCB?
The KediSavar measures 100 × 100 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the KediSavar?
83 components, from 24 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.
Where can I download the KediSavar design files?
From the derdds/Esit-Internship repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.
Can I use the KediSavar design in my own project?
The repository has no license, so all rights stay with derdds. Use it as a reference, and ask the author before reusing the design.
Can I test firmware for the KediSavar 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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