# VELOCISTA ESP32 Upgrade ## Description Welcome to your new project. Imagine what you can build here. ## Project Details - **Owner:** catherine-25 - **Created:** 10/3/2023 - **Last Updated:** 4/6/2026 - **Visibility:** Public - **Part Type:** Schematic Project - **Manufacturer Name:** VELOCISTA - **Datasheet:** Project assembly using ESP32-DEVKIT-V1, LM2596 module, TB6612FNG motor driver, LM1117T-3.3 regulator, and SSD1306 OLED - **Manufacturer Part Number:** VELOCISTA-ESP32-UPGRADE - **Copies:** 1 ## Key Components ### J1 — [Pin Header 01x08 2.54mm Vertical](https://www.flux.ai/adrian95/pin-header-01x08-254mm-vertical~4nq.md) - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Connector **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] - 4 [pin 4] - 5 [pin 5] - 6 [pin 6] - 7 [pin 7] - 8 [pin 8] ### J2 — [Pin Header 01x03 2.54mm Vertical](https://www.flux.ai/adrian95/pin-header-01x03-254mm-vertical~cp4.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] ### J4 — [XY301V-A-5.0-2P](https://www.flux.ai/jharwinbarrozo/xy301v-a-50-2p~u6.md) - Manufacturer Name: Ningbo Xinlaiya Elec. - Manufacturer Part Number: XY301V-A-5.0-2P **Pins:** - PIN1 [pin 1] - PIN2 [pin 2] ### J5 — [XY301V-A-5.0-2P](https://www.flux.ai/jharwinbarrozo/xy301v-a-50-2p~u6.md) - Manufacturer Name: Ningbo Xinlaiya Elec. - Manufacturer Part Number: XY301V-A-5.0-2P **Pins:** - PIN1 [pin 1] - PIN2 [pin 2] ### J6 — [XY301V-A-5.0-2P](https://www.flux.ai/jharwinbarrozo/xy301v-a-50-2p~u6.md) - Manufacturer Name: Ningbo Xinlaiya Elec. - Manufacturer Part Number: XY301V-A-5.0-2P **Pins:** - PIN1 [pin 1] - PIN2 [pin 2] ### J8 — [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] ### M1 — [lm2596 step down module](https://www.flux.ai/vasyl/lm2596-step-down-module~yl.md) - Part Type: DC-DC Convertor **Pins:** - GND OUT - GND VIN - OUT - VIN ### SW1 — [DS04-254-1L-01BK](https://www.flux.ai/vasyl/ds04-254-1l-01bk~op.md) - Manufacturer Name: CUI Devices - Datasheet URL: https://www.cuidevices.com/product/resource/digikeypdf/ds04-254.pdf - Part Type: Switch - Manufacturer Part Number: DS04-254-1L-01BK **Pins:** - ~ [pin 1B] - ~ [pin 1A] ### U1 — [ESP32-DEVKIT-V1](https://www.flux.ai/jharwinbarrozo/esp32-devkit-v1~7xd.md) - Package: DevKit - Implementation Details: Mapeo funcional desde Arduino Nano: D3->D25, D4->D26, D5->D14, D6->D27, D7->D32, D8->D33, D9->D18, A0->VP, A1->VN, A2/A6->D34, A3/A7->D35; alimentación principal por VIN con LDO externo a 3.3V; I2C OLED: D21->SDA, D22->SCL. - Symbol Style: Parametric - Manufacturer Part Number: ESP32-DEVKIT-V1 - Role: Main MCU - Datasheet URL: https://www.espressif.com/sites/default/files/documentation/esp32_datasheet_en.pdf - Part Type: Integrated Circuit - Manufacturer Name: Espressif Systems - Role Details: ESP32 DevKit usado para reemplazar el Arduino Nano con lógica a 3.3V y conectividad WiFi/BLE **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] - TX0 [pin 13] - TX2 [pin 7] - VIN [pin 30] - VN [pin 18] - VP [pin 17] ### U2 — [TB6612FNG](https://www.flux.ai/jecstronic/tb6612fng~lr.md) - License: https://creativecommons.org/licenses/by/4.0/ - Datasheet URL: https://www.pololu.com/product/713 - Part Type: Module - Manufacturer Part Number: TB6612FNG - Manufacturer Name: Pololu **Pins:** - AIN1 [pin 14] - AIN2 [pin 15] - AO1 [pin 3] - AO2 [pin 4] - BIN1 [pin 12] - BIN2 [pin 11] - BO1 [pin 6] - BO2 [pin 5] - GND [pin 9] - GND [pin 1] - GND [pin 8] - PWMA [pin 16] - PWMB [pin 10] - STBY [pin 13] - VCC [pin 2] - VMOT [pin 7] ### U4 — [LM1117T-3.3](https://www.flux.ai/lcsc/lm1117t-3p3~gdxv.md) - Part Type: Linear Voltage Regulators (LDO) - Manufacturer Name: HGSEMI(华冠) - Package or Case Code: TO-220-3_L10.0-W4.5-P2.54-L - Manufacturer Part Number: LM1117T-3.3 - Product Info Url: https://lcsc.com/product-detail/Uncategorized_HGSEMI-LM1117T-3-3_C498321.html - JLCPCB Part Class: Extended Part - Package: TO-220-3_L10.0-W4.5-P2.54-L - LCSC Part Number: C498321 - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2409280032_HGSEMI-LM1117T-3-3_C498321.pdf - Role Details: LM1117T-3.3 LDO from 5V to 3.3V for ESP32 and peripherals; TO-220 package for easier manual assembly - Role: 3.3V Regulator **Pins:** - GND [pin 1] - IN [pin 3] - OUT [pin 2] *The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/catherine-25/velocista-esp32-upgrade~99](https://www.flux.ai/catherine-25/velocista-esp32-upgrade~99).* --- *Generated from [https://www.flux.ai/catherine-25/velocista-esp32-upgrade~99](https://www.flux.ai/catherine-25/velocista-esp32-upgrade~99)*