2 layers80 × 59.7 mm
4 layers28.9 × 51.8 mm
A radiator controller for the ESP32-S2 dev board
- Size
- 28.9 × 51.8 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 22
- Nets
- 49
- Pads
- 155
- Tracks, vias
- 252, 837
- Pours
- 3
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 17 Aug 2025
- Updated
- 30 Sep 2025
Overview
Front is an open-source printed circuit board by ray33ee, from the ray33ee/radiator_rust repository on GitHub. It is a 4-layer board of 28.9 × 51.8 mm with 22 parts on 49 nets, routed with 252 tracks and 837 vias.
It is built around the ESP32-S2-MINI-2-N4, DRV8836DSS and LD1117AG-33-AA3-A-R. Its parts include 7 capacitors, 4 connectors, 3 resistors, 3 ICs and 3 switches. It belongs with the ESP32 boards of this library.
Main components
3
ESP32-S2-MINI-2-N4
SMD-40℃~+105℃ -97dBm 19.5dBm 2.4GHz 310mA 3V~3.6V 63mA ESP32-S2FH4 Chip On-board PCB Antenna UART、SPI、I2C、I2S、USB SMD WiFi Modules ROHSEspressif SystemsWiFi Modules
DRV8836DSS
WSON-12-EP(2x3)-40℃~+85℃ 1.5A 2 2V~7V 305mΩ 90nA Yes WSON-12-EP(2x3) Brushed DC Motor Drivers ROHSTexas InstrumentsStepper Motor Driver
LD1117AG-33-AA3-A-R
SOT-223-20℃~+125℃@(Tj) 1 1.3V@(1A) 100uV 15V 1A 3.3V 5mA 75dB@(120Hz) Fixed Over Current Protection、Over Temperature Protection Positive SOT-223-4 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSUTCVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
Parts
22| Qty | Value | Footprint | References |
|---|---|---|---|
| 3 | 0603WAF1002T5E | Resistor_SMD:R_0603_1608Metric | R1, R2, R3 |
| 3 | 10uF | Capacitor_SMD:C_0603_1608Metric | C1, C2, C7 |
| 2 | 100nF | Capacitor_SMD:C_0603_1608Metric | C3, C6 |
| 1 | |||
| 1 | 1uF | Capacitor_SMD:C_0603_1608Metric | C5 |
| 1 | 22uF | Capacitor_SMD:C_0603_1608Metric | C4 |
| 1 | BOOT | Button_Switch_SMD:SW_Push_SPST_NO_Alps_SKRK | SW2 |
| 1 | Conn_01x08_Pin | connector:SAMTEC-MMT-108-02-X-SH | J3 |
| 1 | Conn_02x04_Odd_Even | connector:SAMTEC_CLT-104-02-F-D-BE-K-TR | J4 |
| 1 | DRV8836 | 8836:DRV8836 | U3 |
| 1 | ESP32-S2-MINI-2-N4 | esp32-s2:WIFI-SMD_ESP32-MINI-1-N4 | U2 |
| 1 | LD1117AG-33-AA3-A-R | Package_TO_SOT_SMD:SOT-223-3_TabPin2 | U1 |
| 1 | MODE | Button_Switch_SMD:SW_Push_SPST_NO_Alps_SKRK | SW3 |
| 1 | MOTOR | Connector_JST:JST_SH_SM04B-SRSS-TB_1x04-1MP_P1.00mm_Horizontal | J2 |
| 1 | RESET | Button_Switch_SMD:SW_Push_SPST_NO_Alps_SKRK | SW1 |
| 1 | USB_B_Micro | usb-c:MICRO-USB-TH_U-MICRS05P-BF00 | J1 |
The 21 most common of 22 parts.
Questions
How big is the Front PCB?
It measures 28.9 × 51.8 mm and has 4 copper layers, 1.6 mm thick.
What parts does the Front use?
22 parts, built around the ESP32-S2-MINI-2-N4, DRV8836DSS and LD1117AG-33-AA3-A-R. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the Front KiCad files?
From the ray33ee/radiator_rust repository on GitHub, at the commit this page was made from: the board is schematics/front/front.kicad_pcb and its schematic schematics/dev_board/dev_board.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Front design in my own project?
Its repository states no licence, so its author keeps all rights: ask ray33ee before reusing the design.
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