Neo
About the Neo PCB
Neo is an open source ESP32 PCB design by IstratieStefan, published on GitHub under the MIT license. It is a 2-layer board measuring 119.1 × 121 mm, with 80 components from 56 distinct parts.
Its main chip is the ESP32-DEVKITC, from the ESP32 family. Other key parts include the 74LVC125APW,112, L7812, TSR 1-2450, IR2111 and ACS758. By type, the board carries 23 resistors, 16 capacitors, 10 connectors, 7 ICs, 7 jumpers and 5 transistors.
It belongs with the robotics & motion designs in this gallery.
From the project
A motor controller for F24+ Cars
Main components on the Neo
Neo bill of materials (BOM)
80 components, 56 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 74LVC125APW,112 | SOP65P640X110-14N | IC1 |
| 1 | L7812 | TO-220-3_Vertical | U1 |
| 1 | TSR 1-2450 | Converter_DCDC_TRACO_TSR-1_THT | U2 |
| 1 | ESP32-DEVKITC IR2111 | DIP-8_W7.62mm_Socket_LongPads | U3 |
| 1 | IR2111 ACS758 | Allegro_CB_PFF | U4 |
| 1 | ACS758 ESP32-S3-WROOM-1 | ESP32-S3-WROOM-1 | U5 |
| 1 | LD1117S33TR_SOT223 | SOT-223 | U6 |
| 1 | 2N7000 | TO-92_Inline_Wide | Q2 |
| 1 | 2N7000 Fly FET | TO-220-3_Vertical | Q4 |
| 2 | Drive FET | TO-220-3_Vertical | Q5, Q7 |
| 1 | Fly FET | TO-220-3_Vertical | Q6 |
| 1 | Batt +24 | 7461001_REDCUBE | J1 |
| 1 | Motor +Ve | 7461001_REDCUBE | J2 |
| 1 | Motor -Ve | 7461001_REDCUBE | J3 |
| 1 | Batt GND | 7461001_REDCUBE | J4 |
| 2 | 1990067 | 1990067 | J5, J6 |
| 1 | SCREW_TERMINAL_01X02 ADS1115 | PinHeader_1x10_P2.54mm_Vertical | J8 |
| 1 | USB_C_Receptacle_USB2.0_14P | USB_C_Receptacle_GCT_USB4105-xx-A_16P_TopMnt_Horizontal | J9 |
| 1 | 112J-TDAR-R01 | 112JTDARR01 | J10 |
| 1 | ADS1115 Extended Peripherals | PinHeader_2x10_P2.54mm_Vertical | J11 |
Show 36 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 5A | Fuse_Bourns_MF-RG800 | F1 |
| 2 | HEATSINK_PAD_2PIN Heatsink_Pad_2Pin | Heatsink_Fischer_SK104-STC-STIC_35x13mm_2xDrill2.5mm | HS1, HS2 |
| 1 | Heatsink | Heatsink_Stonecold_HS-S01_13.21x6.35mm | HS3 |
| 7 | Switch ADC | SolderJumper-2_P1.3mm_Open_TrianglePad1.0x1.5mm | JP1, JP2, JP3, JP4, JP5, JP6, JP7 |
| 1 | LoRa Module | Ra-02 | LoRa module1 |
| 2 | SW_Push | SW_Tactile_SPST_Angled_PTS645Vx58-2LFS | SW1, SW2 |
| 1 | 12V TPWM | TestPoint_Plated_Hole_D2.0mm | TP2 |
| 1 | TVBVS | PinHeader_1x02_P2.54mm_Vertical | TP3 |
| 1 | 1N4007 | D_DO-41_SOD81_P10.16mm_Horizontal | D1 |
| 1 | 1N4007 LED | LED_0805_2012Metric_Pad1.15x1.40mm_HandSolder | D2 |
| 1 | LED | LED_0805_2012Metric_Pad1.15x1.40mm_HandSolder | D3 |
| 1 | 2.2M 2.2mF | C_Radial_D18.0mm_H35.5mm_P7.50mm | C1 |
| 1 | 10U 10uF | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C2 |
| 2 | 470U 470uF | CP_Radial_D13.0mm_P5.00mm | C3, C4 |
| 3 | 100N 0.1uF | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C5, C7, C9 |
| 4 | 1uF | R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | C6, C8, C10, C11 |
| 3 | 10uF | C_1206_3216Metric_Pad1.33x1.80mm_HandSolder | C12, C15, C16 |
| 1 | 0.1uF | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C13 |
| 1 | 22uF | C_1206_3216Metric_Pad1.33x1.80mm_HandSolder | C14 |
| 1 | 10K | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R1 |
| 1 | 680R | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R2 |
| 2 | 10K | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R3, R7 |
| 1 | 4.7K 47K | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R5 |
| 1 | 47K 80.6K | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R6 |
| 1 | 10K 47R | R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R10 |
| 2 | 4.7K 47R | R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R11, R12 |
| 1 | 47R | R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R13 |
| 1 | 47R 80.6K | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R14 |
| 1 | 47R 10K | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R15 |
| 1 | 47R *10K* | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R16 |
| 1 | 80.6K *10K* | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R17 |
| 1 | 10K 3.3K | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R18 |
| 3 | 3.3K | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R19, R22, R23 |
| 3 | 5.1K | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R20, R21, R24 |
| 1 | 470R | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R25 |
| 1 | 1K | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R26 |
Neo design files
The KiCad project lives in the IstratieStefan/Neo repository on GitHub; these links point at the commit this page was built from.
- LayoutNeo.kicad_pcb
- SchematicNeo.kicad_sch
- BOMNeo BOM.csv
Neo: common questions
What microcontroller does the Neo use?
The Neo is built around the ESP32-DEVKITC, from the ESP32 family.
How big is the Neo PCB?
The Neo measures 119.1 × 121 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Neo?
80 components, from 56 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 Neo design files?
From the IstratieStefan/Neo 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 Neo design in my own project?
Yes, under the terms of its MIT license, which IstratieStefan chose for the repository.
Can I test firmware for the Neo 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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