ESXAR
About the ESXAR PCB
ESXAR is an open source ESP32 PCB design by nanbuwks, published on GitHub under the Unlicense license. It is a 2-layer board measuring 62.9 × 60.8 mm, with 46 components from 41 distinct parts.
Its main chip is the ESP-WROOM-02, from the ESP32 family. Other key parts include the AUDIO_JACK, MT5201-3.3N, TLP222A, Mini360 and LD1117CV33. By type, the board carries 17 connectors, 8 capacitors, 7 ICs, 3 jumpers, 2 switches and 2 inductors.
Main components on the ESXAR
ESXAR bill of materials (BOM)
46 components, 41 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | ESP-WROOM-02 | ESP_WROOM_02 | U1 |
| 1 | AUDIO_JACK | 3_5mm_4P_phonejack_yizhijia_PJ313 | U3 |
| 1 | MT5201-3.3N | SOT-23-5 | U4 |
| 1 | TLP222A | Optocoupler_SMD_HandSoldering_KPC357_LTV35x_PC357_SingleChannel | U5 |
| 1 | Mini360 | Mini-360_DCDC_LM2596_module | U6 |
| 1 | LD1117CV33 | TO-220 | U7 |
| 1 | TA48M033F | SOT126_SOT32_Housing_Vertical_Mirrored | U8 |
| 2 | ANALOG | SolderWirePad_Oval_3xInline_0-65mmDrill | P1, P13 |
| 1 | BREADBOARD | SolderWirePad_Oval_9xInline_0-6mmDrill | P2 |
| 1 | PROGRAM | SolderWirePad_Oval_5xInline_0-65mmDrill | P3 |
| 1 | OPAMP EX | SolderWirePad_single_0-8mmDrill | P4 |
| 1 | MODEJP | SolderWirePad_Oval_9xInline_0-6mmDrill | P5 |
| 1 | VCCJP | SolderWirePad_Oval_9xInline_0-6mmDrill | P6 |
| 1 | GNDJP | SolderWirePad_Oval_9xInline_0-6mmDrill | P7 |
| 1 | SCREW | bornier3 | P8 |
| 1 | USB_A | USB_A_Vertical_Short | P10 |
| 1 | USB_B | USB_A_Male_Board | P11 |
| 1 | SERVO/INPUT | SolderWirePad_Oval_3xInline_0-65mmDrill | P12 |
| 1 | BREADBOARD_POWER | Padmatrix-wide-02x01 | P16 |
| 1 | SENSOR | bornier3 | P17 |
Show 21 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | EXTIO | SolderWirePad_Oval_9xInline_0-7mmDrill | P18 |
| 2 | UNIVERSAL | SolderWirePad_Oval_9xInline_0-7mmDrill | P19, P20 |
| 1 | MODE_JP | SolderWirePad_Oval_3xInline_0-65mmDrill | JP1 |
| 1 | WAKEUP | Solder_Jumper_3 | JP2 |
| 1 | JUMPER | Pin_Header_Straight_1x02 | JP3 |
| 1 | R_PACK4 | R_Array_Convex_4x1206 | RP1 |
| 1 | 4UNIT_R_PACK | R_Array_For_R_Multi_library_4x1206 | RP2 |
| 1 | SPEAKER | Buzzer_12x9.5RM7.6 | SP1 |
| 1 | BEEP | Buzzer_12x9.5RM7.6 | SP2 |
| 1 | RESET | SW_PUSH_SMALL | SW1 |
| 1 | DIN | SW_PUSH_SMALL | SW2 |
| 1 | LED_RCBG | LED-RGB-5MM_Common_Cathode | D2 |
| 1 | 4.7uH | C_1206_HandSoldering_Small | L1 |
| 1 | L_Small | C_1206_HandSoldering_Small | L2 |
| 1 | 10uF | C_Disc_D3_P2.5 | C1 |
| 2 | 0.1uF | C_1206_HandSoldering_Small | C2, C9 |
| 1 | CP | C_Radial_D6.3_L11.2_P2.5 | C3 |
| 2 | 100uF | C_Radial_D6.3_L11.2_P2.5 | C5, C8 |
| 2 | 10uF | C_1206_HandSoldering_Small | C6, C7 |
| 1 | 4.7kΩ | R_1206 | R1 |
| 1 | 4.7kΩ | R1 | R13 |
ESXAR design files
The KiCad project lives in the nanbuwks/ESXAR repository on GitHub; these links point at the commit this page was built from.
- LayoutESXAR.kicad_pcb
ESXAR: common questions
What microcontroller does the ESXAR use?
The ESXAR is built around the ESP-WROOM-02, from the ESP32 family.
How big is the ESXAR PCB?
The ESXAR measures 62.9 × 60.8 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the ESXAR?
46 components, from 41 distinct parts. The full bill of materials is listed on this page.
Where can I download the ESXAR design files?
From the nanbuwks/ESXAR repository on GitHub, which has the KiCad layout; the links under Design files point to each one.
Can I use the ESXAR design in my own project?
Yes, under the terms of its Unlicense license, which nanbuwks chose for the repository.
Can I test firmware for the ESXAR 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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