# ESP32 YoRadio Perfboard Carrier ## Description Compact through-hole ESP32 YoRadio perfboard-style carrier with connectors, headers, power switching, LEDs, and audio amplifier section. ## Project Details - **Owner:** baritoshi - **Created:** 5/1/2026 - **Last Updated:** 5/1/2026 - **Visibility:** Public ## Key Components ### J1 — [Pin Header 01x04 2.54mm Vertical](https://www.flux.ai/adrian95/pin-header-01x04-254mm-vertical~l97.md) - Role: LCD I2C connector - Role Details: Pin_1=5V, Pin_2=GND, Pin_3=SDA/GPIO21, Pin_4=SCL/GPIO22 - Part Type: Connector - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - Pin_1 [pin 1] - Pin_2 [pin 2] - Pin_3 [pin 3] - Pin_4 [pin 4] ### J2 — [Pin Header 01x05 2.54mm Vertical](https://www.flux.ai/adrian95/pin-header-01x05-254mm-vertical~cas.md) - Part Type: Connector - Role: Rotary encoder connector - Role Details: 1=CLK/GPIO32, 2=DT/GPIO33, 3=SW/GPIO35 with 10k pull-up, 4=3.3V, 5=GND - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] - 4 [pin 4] - 5 [pin 5] ### J3 — [Pin Header 01x02 2.54mm Vertical](https://www.flux.ai/jharwinbarrozo/generic-pin-header-01x02-2p54mm-vertical~4uy.md) - Part Type: Connector - Role Details: P1=SPK+, P2=SPK-; passive 4 ohm speaker only, no connection to GND - License: https://creativecommons.org/licenses/by/4.0/ - Role: Speaker connector **Pins:** - P1 [pin 1] - P2 [pin 2] ### J4 — [KF128-5.08-2P-AA](https://www.flux.ai/lcsc/kf128-5p08-2p-aa~0pbi.md) - Role Details: 1=+5V IN to switch connector, 2=GND IN direct to GND rail - Current Rating: 24A - Connector Positions: 2 - Manufacturer Part Number: KF128-5.08-2P-AA - Product Info Url: https://lcsc.com/product-detail/New-Quadratic-Unclassified-Data_Cixi-Kefa-Elec-KF128-5-08-2P_C474952.html - Package or Case Code: CONN-TH_P5.08_KF128-5.08-2P - Part Type: Screw terminal - JLCPCB Part Class: Extended Part - Manufacturer Name: KEFA(科发) - LCSC Part Number: C474952 - Connector Pitch: 5.08mm - Role: 5V input screw terminal - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2408211511_Cixi-Kefa-Elec-KF128-5-08-2P-AA_C474952.pdf - Connector Rows: 1 - Operating Temperature: -40℃~+105℃ - Connector Type: Screw terminal - Connector Gender: Female **Pins:** - 1 [pin 1] - 2 [pin 2] ### J5 — [KF128-5.08-2P-AA](https://www.flux.ai/lcsc/kf128-5p08-2p-aa~0pbi.md) - Manufacturer Part Number: KF128-5.08-2P-AA - Role Details: 1=SW IN from +5V input, 2=SW OUT to +5V rail - Connector Positions: 2 - JLCPCB Part Class: Extended Part - LCSC Part Number: C474952 - Manufacturer Name: KEFA(科发) - Package or Case Code: CONN-TH_P5.08_KF128-5.08-2P - Product Info Url: https://lcsc.com/product-detail/New-Quadratic-Unclassified-Data_Cixi-Kefa-Elec-KF128-5-08-2P_C474952.html - Role: External power switch screw terminal - Part Type: Screw terminal - Current Rating: 24A - Connector Rows: 1 - Operating Temperature: -40℃~+105℃ - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2408211511_Cixi-Kefa-Elec-KF128-5-08-2P-AA_C474952.pdf - Connector Gender: Female - Connector Type: Screw terminal - Connector Pitch: 5.08mm **Pins:** - 1 [pin 1] - 2 [pin 2] ### LED1 — [LED THT D3.0mm](https://www.flux.ai/jharwinbarrozo/led-tht-d3p0mm~hf.md) - Part Type: LED - Forward Voltage: 1.7V **Pins:** - A [pin 2] - K [pin 1] ### LED2 — [LED THT D3.0mm](https://www.flux.ai/jharwinbarrozo/led-tht-d3p0mm~hf.md) - Forward Voltage: 1.7V - Part Type: LED **Pins:** - A [pin 2] - K [pin 1] ### U1 — [ESP32-DEVKITC](https://www.flux.ai/vasy_skral/esp32-devkitc~7mc.md) - Role: ESP32 DevKit module socket - Manufacturer Name: Espressif Systems - License: https://creativecommons.org/licenses/by/4.0/ - Datasheet URL: http://espressif.com/sites/default/files/documentation/esp32_datasheet_en.pdf - Symbol Style: Parametric - Part Type: Development Boards - Manufacturer Part Number: ESP32-DEVKITC - Role Details: 30-pin ESP32 DevKit / ESP-WROOM-32 centered on female headers **Pins:** - 3V3 [pin 1] - CLK [pin 20] - CMD [pin 18] - EN [pin 2] - EXT_5V [pin 19] - GND1 [pin 14] - GND2 [pin 32] - GND3 [pin 38] - IO0 [pin 25] - IO12 [pin 13] - IO13 [pin 15] - IO14 [pin 12] - IO15 [pin 23] - IO16 [pin 27] - IO17 [pin 28] - IO18 [pin 30] - IO19 [pin 31] - IO2 [pin 24] - IO21 [pin 33] - IO22 [pin 36] - IO23 [pin 37] - IO25 [pin 9] - IO26 [pin 10] - IO27 [pin 11] - IO32 [pin 7] - IO33 [pin 8] - IO34 [pin 5] - IO35 [pin 6] - IO4 [pin 26] - IO5 [pin 29] - RXD0 [pin 34] - SD0 [pin 21] - SD1 [pin 22] - SD2 [pin 16] - SD3 [pin 17] - SENSOR_VN [pin 4] - SENSOR_VP [pin 3] - TXD0 [pin 35] ### U2 — [MAX98357 Breakout](https://www.flux.ai/giulioz/max98357-breakout~uw.md) - Product Info Url: https://www.adafruit.com/product/3006 - Role: MAX98357A I2S amplifier module socket - Role Details: Right side, short I2S from ESP32; speaker connector adjacent; SD/GAIN left available **Pins:** - BCLK - DIN - GAIN - GND - LRC - S- - S+ - SD - Vin *The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/baritoshi/esp32-yoradio-perfboard-carrier~fj](https://www.flux.ai/baritoshi/esp32-yoradio-perfboard-carrier~fj).* --- *Generated from [https://www.flux.ai/baritoshi/esp32-yoradio-perfboard-carrier~fj](https://www.flux.ai/baritoshi/esp32-yoradio-perfboard-carrier~fj)*