Arm Schematic V2
ICRS·IPRL-Electronics-Hardware·PCBs/Arm Schematic V2/Arm Schematic V2/Arm Schematic V2.kicad_pcb
About the Arm Schematic V2 PCB
Arm Schematic V2 is an open source ESP32 PCB design by ICRS, published on GitHub. It is a 2-layer board measuring 100 × 80 mm, with 89 components from 15 distinct parts.
Its main chip is the Z_ESP32_DevKitC_38pin_socket, from the ESP32 family. Other key parts include the AMS1117-3.3, ADS1115IDGS and TCA9548APWR. By type, the board carries 48 resistors, 19 connectors, 12 transistors, 4 ICs, 4 capacitors and 2 diodes.
Main components on the Arm Schematic V2
Arm Schematic V2 bill of materials (BOM)
89 components, 15 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | AMS1117-3.3 | SOT-223-3_TabPin2 | U1 |
| 1 | ~ | Z_ESP32_DevKitC_38pin_socket | U2 |
| 1 | ADS1115IDGS | TSSOP-10_3x3mm_P0.5mm | U3 |
| 1 | TCA9548APWR | TSSOP-24_4.4x7.8mm_P0.65mm | U8 |
| 12 | BSS138 | SOT-23 | Q1, Q2, Q3, Q4, Q5, Q6, Q7, Q8 +4 |
| 3 | Conn_01x03 | JST_GH_BM03B-GHS-TBT_1x03-1MP_P1.25mm_Vertical | J1, J14, J15 |
| 11 | Conn_01x04 | JST_GH_BM04B-GHS-TBT_1x04-1MP_P1.25mm_Vertical | J2, J3, J4, J6, J7, J8, J9, J10 +3 |
| 1 | Conn_01x02 | AMASS_XT30PW-M_1x02_P2.50mm_Horizontal | J5 |
| 4 | Conn_01x02 | JST_GH_BM02B-GHS-TBT_1x02-1MP_P1.25mm_Vertical | J16, J17, J18, J19 |
| 2 | LED | LED_0805_2012Metric | D2, D3 |
| 2 | 1u | C_0805_2012Metric | C1, C18 |
| 2 | 10u | C_0805_2012Metric | C5, C7 |
| 2 | 1k | R_0805_2012Metric | R3, R5 |
| 45 | 10k | R_0805_2012Metric | R4, R6, R7, R8, R9, R10, R11, R12 +37 |
| 1 | 0R | R_0805_2012Metric | R50 |
Arm Schematic V2 design files
The KiCad project lives in the ICRS/IPRL-Electronics-Hardware repository on GitHub; these links point at the commit this page was built from.
Arm Schematic V2: common questions
What microcontroller does the Arm Schematic V2 use?
The Arm Schematic V2 is built around the Z_ESP32_DevKitC_38pin_socket, from the ESP32 family.
How big is the Arm Schematic V2 PCB?
The Arm Schematic V2 measures 100 × 80 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Arm Schematic V2?
89 components, from 15 distinct parts. The full bill of materials is listed on this page.
Where can I download the Arm Schematic V2 design files?
From the ICRS/IPRL-Electronics-Hardware repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the Arm Schematic V2 design in my own project?
The repository has no license, so all rights stay with ICRS. Use it as a reference, and ask the author before reusing the design.
Can I test firmware for the Arm Schematic V2 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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