# IoT Trainer Shield ## Description ESP32-S3-based IoT trainer board with USB-C power/programming, 3.3V regulation, boot/reset controls, and basic bring-up support for classroom experimentation. ## Project Details - **Owner:** hvyhny - **Created:** 5/17/2026 - **Last Updated:** 6/22/2026 - **Visibility:** Public ## Key Components ### DIRECT 5V — [Pin Socket 01x03 2.54mm Vertical](https://www.flux.ai/adrian95/pin-socket-01x03-254mm-vertical~tj7.md) - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Connector **Pins:** - Pin_1 [pin 1] - Pin_2 [pin 2] - Pin_3 [pin 3] ### ESP 3.3V — [Pin Socket 01x03 2.54mm Vertical](https://www.flux.ai/adrian95/pin-socket-01x03-254mm-vertical~tj7.md) - Part Type: Connector - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - Pin_1 [pin 1] - Pin_2 [pin 2] - Pin_3 [pin 3] ### GND — [Pin Socket 01x03 2.54mm Vertical](https://www.flux.ai/adrian95/pin-socket-01x03-254mm-vertical~tj7.md) - Part Type: Connector - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - Pin_1 [pin 1] - Pin_2 [pin 2] - Pin_3 [pin 3] ### ILI9341 — [Adafruit SPI TFT LCD Display Touch ILI9341](https://www.flux.ai/jharwinbarrozo/adafruit-spi-tft-lcd-display-touch-ili9341~sh9.md) - Part Type: Display Device - Manufacturer Part Number: Adafruit ILI9341 - Datasheet URL: https://cdn-shop.adafruit.com/datasheets/ILI9341.pdf - Manufacturer Name: Adafruit Industries - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - CS [pin 12] - D/C [pin 10] - GND [pin 13] - LED [pin 7] - MISO [pin 6] - MOSI [pin 9] - RESET [pin 11] - SCK [pin 8] - SD_CS [pin SD4] - SD_MISO [pin SD2] - SD_MOSI [pin SD3] - SD_SCK [pin SD1] - T_CLK [pin 5] - T_CS [pin 4] - T_DIN [pin 3] - T_DO [pin 2] - T_IRQ [pin 1] - VCC [pin 14] ### J1 — [Pin Socket 01x04 2.54mm Vertical](https://www.flux.ai/adrian95/pin-socket-01x04-254mm-vertical~kks.md) - 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] ### J10 — [Pin Socket 01x04 2.54mm Vertical](https://www.flux.ai/adrian95/pin-socket-01x04-254mm-vertical~kks.md) - 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] ### J11 — [Pin Socket 01x03 2.54mm Vertical](https://www.flux.ai/adrian95/pin-socket-01x03-254mm-vertical~tj7.md) - Part Type: Connector - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - Pin_1 [pin 1] - Pin_2 [pin 2] - Pin_3 [pin 3] ### J12 — [Pin Socket 01x03 2.54mm Vertical](https://www.flux.ai/adrian95/pin-socket-01x03-254mm-vertical~tj7.md) - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Connector **Pins:** - Pin_1 [pin 1] - Pin_2 [pin 2] - Pin_3 [pin 3] ### J17 — [Pin Socket 01x04 2.54mm Vertical](https://www.flux.ai/adrian95/pin-socket-01x04-254mm-vertical~kks.md) - 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] ### J18 — [Pin Socket 01x04 2.54mm Vertical](https://www.flux.ai/adrian95/pin-socket-01x04-254mm-vertical~kks.md) - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Connector **Pins:** - Pin_1 [pin 1] - Pin_2 [pin 2] - Pin_3 [pin 3] - Pin_4 [pin 4] ### J19 — [Pin Socket 01x04 2.54mm Vertical](https://www.flux.ai/adrian95/pin-socket-01x04-254mm-vertical~kks.md) - 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 Socket 01x14 2.54mm Vertical](https://www.flux.ai/adrian95/pin-socket-01x14-254mm-vertical~h24.md) - Part Type: Connector - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - Pin_1 [pin 1] - Pin_10 [pin 10] - Pin_11 [pin 11] - Pin_12 [pin 12] - Pin_13 [pin 13] - Pin_14 [pin 14] - Pin_2 [pin 2] - Pin_3 [pin 3] - Pin_4 [pin 4] - Pin_5 [pin 5] - Pin_6 [pin 6] - Pin_7 [pin 7] - Pin_8 [pin 8] - Pin_9 [pin 9] ### J20 — [Pin Socket 01x04 2.54mm Vertical](https://www.flux.ai/adrian95/pin-socket-01x04-254mm-vertical~kks.md) - 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] ### J21 — [Pin Socket 01x04 2.54mm Vertical](https://www.flux.ai/adrian95/pin-socket-01x04-254mm-vertical~kks.md) - 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] ### J3 — [Pin Socket 01x04 2.54mm Vertical](https://www.flux.ai/adrian95/pin-socket-01x04-254mm-vertical~kks.md) - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Connector **Pins:** - Pin_1 [pin 1] - Pin_2 [pin 2] - Pin_3 [pin 3] - Pin_4 [pin 4] ### J4 — [2-Position Screw Terminal](https://www.flux.ai/corynrobinson/2-position-screw-terminal~s4.md) - Datasheet URL: https://www.we-online.com/katalog/datasheet/691137710002.pdf - Manufacturer Name: Würth Elektrik - Part Type: Connector - Manufacturer Part Number: 691137710002 **Pins:** - P1 [pin 1] - P2 [pin 2] ### J5 — [Pin Socket 01x04 2.54mm Vertical](https://www.flux.ai/adrian95/pin-socket-01x04-254mm-vertical~kks.md) - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Connector **Pins:** - Pin_1 [pin 1] - Pin_2 [pin 2] - Pin_3 [pin 3] - Pin_4 [pin 4] ### J6 — [Pin Socket 01x04 2.54mm Vertical](https://www.flux.ai/adrian95/pin-socket-01x04-254mm-vertical~kks.md) - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Connector **Pins:** - Pin_1 [pin 1] - Pin_2 [pin 2] - Pin_3 [pin 3] - Pin_4 [pin 4] ### J7 — [Pin Socket 01x03 2.54mm Vertical](https://www.flux.ai/adrian95/pin-socket-01x03-254mm-vertical~tj7.md) - Part Type: Connector - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - Pin_1 [pin 1] - Pin_2 [pin 2] - Pin_3 [pin 3] ### J8 — [Pin Socket 01x03 2.54mm Vertical](https://www.flux.ai/adrian95/pin-socket-01x03-254mm-vertical~tj7.md) - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Connector **Pins:** - Pin_1 [pin 1] - Pin_2 [pin 2] - Pin_3 [pin 3] ### J9 — [Pin Socket 01x04 2.54mm Vertical](https://www.flux.ai/adrian95/pin-socket-01x04-254mm-vertical~kks.md) - 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] ### LED1 — [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] ### 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] ### LED3 — [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] ### LED4 — [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] ### LEFT_HEADERS — [Pin Socket 01x15 2.54mm Vertical](https://www.flux.ai/adrian95/pin-socket-01x15-254mm-vertical~mqk.md) - Part Type: Connector - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - Pin_1 [pin 1] - Pin_10 [pin 10] - Pin_11 [pin 11] - Pin_12 [pin 12] - Pin_13 [pin 13] - Pin_14 [pin 14] - Pin_15 [pin 15] - Pin_2 [pin 2] - Pin_3 [pin 3] - Pin_4 [pin 4] - Pin_5 [pin 5] - Pin_6 [pin 6] - Pin_7 [pin 7] - Pin_8 [pin 8] - Pin_9 [pin 9] ### PB1 — [SWITCH-PUSH-6mm-H5mm-4pin](https://www.flux.ai/baronunread/switch-push-6mm-h5mm-4pin~4u.md) - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Switch **Pins:** - 1-1 [pin 1-1] - 1-2 [pin 1-2] - 2-1 [pin 2-1] - 2-2 [pin 2-2] ### PB2 — [SWITCH-PUSH-6mm-H5mm-4pin](https://www.flux.ai/baronunread/switch-push-6mm-h5mm-4pin~4u.md) - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Switch **Pins:** - 1-1 [pin 1-1] - 1-2 [pin 1-2] - 2-1 [pin 2-1] - 2-2 [pin 2-2] ### PB3 — [SWITCH-PUSH-6mm-H5mm-4pin](https://www.flux.ai/baronunread/switch-push-6mm-h5mm-4pin~4u.md) - Part Type: Switch - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - 1-1 [pin 1-1] - 1-2 [pin 1-2] - 2-1 [pin 2-1] - 2-2 [pin 2-2] ### PB4 — [SWITCH-PUSH-6mm-H5mm-4pin](https://www.flux.ai/baronunread/switch-push-6mm-h5mm-4pin~4u.md) - Part Type: Switch - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - 1-1 [pin 1-1] - 1-2 [pin 1-2] - 2-1 [pin 2-1] - 2-2 [pin 2-2] ### RIGHT_HEADERS — [Pin Socket 01x15 2.54mm Vertical](https://www.flux.ai/adrian95/pin-socket-01x15-254mm-vertical~mqk.md) - Part Type: Connector - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - Pin_1 [pin 1] - Pin_10 [pin 10] - Pin_11 [pin 11] - Pin_12 [pin 12] - Pin_13 [pin 13] - Pin_14 [pin 14] - Pin_15 [pin 15] - Pin_2 [pin 2] - Pin_3 [pin 3] - Pin_4 [pin 4] - Pin_5 [pin 5] - Pin_6 [pin 6] - Pin_7 [pin 7] - Pin_8 [pin 8] - Pin_9 [pin 9] ### S3 — [KCD11-2P-R](https://www.flux.ai/adrian95/kcd11-2p-r~o0w.md) - Manufacturer Part Number: KCD11-2P-R - Part Type: Switch - License: https://creativecommons.org/licenses/by/4.0/ - Datasheet URL: https://lcsc.com/datasheet/lcsc_datasheet_2411251529_SHOU-HAN-KCD11-2P-R_C5884414.pdf - Manufacturer Name: SHOU HAN **Pins:** - P1 - P2 ### U2 — [ESP32-DEVKIT-V1](https://www.flux.ai/jharwinbarrozo/esp32-devkit-v1~7xd.md) - Manufacturer Name: Espressif Systems - Symbol Style: Parametric - Part Type: Integrated Circuit - Manufacturer Part Number: ESP32-DEVKIT-V1 - Datasheet URL: https://www.espressif.com/sites/default/files/documentation/esp32_datasheet_en.pdf **Pins:** - 3V3 [pin 1] - D12 [pin 27] - D13 [pin 28] - D14 [pin 26] - D15 [pin 3] - D18 [pin 9] - D19 [pin 10] - D2 [pin 4] - D21 [pin 11] - D22 [pin 14] - D23 [pin 15] - D25 [pin 23] - D26 [pin 24] - D27 [pin 25] - D32 [pin 21] - D33 [pin 22] - D34 [pin 19] - D35 [pin 20] - D4 [pin 5] - D5 [pin 8] - EN [pin 16] - GND [pin 2] - GND_1 [pin 29] - RX0 [pin 12] - RX2 [pin 6] - sensor_VN [pin 18] - sensor_VP [pin 17] - TX0 [pin 13] - TX2 [pin 7] - VIN [pin 30] *The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/hvyhny/iot-trainer-shield~w2](https://www.flux.ai/hvyhny/iot-trainer-shield~w2).* --- *Generated from [https://www.flux.ai/hvyhny/iot-trainer-shield~w2](https://www.flux.ai/hvyhny/iot-trainer-shield~w2)*