ESP32 DEVKIT V1

Description of ESP32 DEVKIT V1 The ESP32 Devkit V1 by Espressif Systems is currently the smallest microcontroller series in the world, featuring built-in WiFi and Bluetooth simultaneously, making it ideal for IoT projects or small electronic applications.  When comparing the ESP32 to the Arduino, Atmel, or PIC, you'll find that the ESP32 Devkit V1 offers more pins, a faster processor, and superior overall performance. Some even compare the Raspberry Pi to the ESP32, but the ESP32 is smaller, cheaper, consumes less power, and is more suitable for compact projects.  If you’re just getting started, check out our ESP32 Tutorials in Bangla. Specification Parameter Details Microcontroller ESP-WROOM-32 Processor Xtensa dual-core 32-bit LX6 Clock Speed 240 MHz RAM 520 KB SRAM, 448 KB ROM, 16 KB SRAM in RTC Flash Memory 4 MB WiFi 802.11b/g/n Bluetooth V4.2 GPIOs 25 Antenna On-board PCB antenna Programming Port Micro USB USB to UART CP2102 Dimensions 50 × 29 mm (±2) Compared to others ESP32 Devkit V1 is a powerful dual-core board with Wi-Fi and Bluetooth, offering many GPIO pins for complex IoT projects. ESP8266 NodeMCU V2 is a simple single-core Wi-Fi board with fewer pins, suitable for basic IoT tasks. Arduino UNO is a beginner-friendly board with no built-in wireless, slower speed, and limited pins, ideal for basic electronics and prototyping. Feature ESP32 ESP8266 Arduino UNO Clock Speed 240 MHz 160 MHz 16 MHz WiFi Yes Yes No Bluetooth Yes No No Memory 520 KB SRAM, 4 MB Flash 160 KB SRAM, 4 MB Flash 2 KB SRAM, 32 KB Flash GPIOs 25 17 20 ESP32 Pin Diagram All of the 25 GPIOs, including 15 ADC, 2 UART, 25 PWM, 2 DAC, 3 SPI, 1 I2C, 2 I2S, and 9 Touch functionality. Pin GPIO Alternate Pin Function Safe Remarks 1   EN / RESET     2 GPIO36 VP / ADC1_0 ⚠️ Input only 3 GPIO39 VN / ADC1_3 ⚠️ Input only 4 GPIO34 ADC1_6 ⚠️ Input only 5 GPIO35 ADC1_7 ⚠️ Input only 6 GPIO32 ADC1_4 / Touch9 ✔️   7 GPIO33 ADC1_5 / Touch8 ✔️   8 GPIO25 ADC2_8 / DAC1 ✔️   9 GPIO26 ADC2_9 / DAC2 ✔️   10 GPIO27 ADC2_7 / Touch7 ✔️   11 GPIO14 ADC2_6 / Touch6 / HSPI_CLK ✔️   12 GPIO12 ADC2_5 / Touch5 / HSPI_MISO ⚠️ Must be LOW during boot 13 GPIO13 ADC2_4 / Touch4 / HSPI_MOSI ✔️   14 GND —     15 VIN —   4.8V < VIN < 12V 16 3.3V —   600mA 17 GND —     18 GPIO15 ADC2_3 / Touch3 / HSPI_CS ⚠️ Must be HIGH during boot, prevents startup log if pulled LOW 19 GPIO2 ADC2_2 / Touch2 / CS ⚠️ Must be LOW during boot and connected to onboard LED 20 GPIO4 ADC2_0 / Touch0 ✔️   21 GPIO16 U2_RXD ✔️   22 GPIO17 U2_TXD ✔️   23 GPIO5 VSPI_CS ⚠️ Must be HIGH during boot 24 GPIO18 SCK ✔️   25 GPIO19 VSPI_MISO ✔️   26 GPIO21 SDA ✔️   27 GPIO22 SCL ✔️   28 GPIO23 VSPI_MOSI ✔️   29 TX0 UART0_TX ⚠️ Used for programming 30 RX0 UART0_RX ⚠️ Used for programming HSPI and VSPI both can be used for SPI interfaces, where VSPI pins are commonly used in standard libraries.  All GPIOs (except input-only) can be used as PWM pins.  ADC2 pins can’t be used when WiFi is enabled.  All DACs have 8-bit resolution. ESP32 has two I2C buses but no dedicated pins. It allows for flexible pin assignment. (GPIO21 and GPIO22 are commonly used.)  Pulling LOW in EN, disable the chip (Hardware Reset) Power Supply The ESP32 Dev Board V1 features a positive voltage regulator, specifically the AMS1117-3.3, which enables operation with external power sources. This configuration eliminates the need to keep the board connected to your computer for power. When powered via the VIN pin, the input voltage is passed through the regulator, which then converts it to a stable 3.3V output, providing power to the board’s various power rails. According to the datasheet, the AMS1117-3.3 can safely operate with input voltages ranging from 4.8V to 12V. However, higher input voltages may necessitate additional heat dissipation to prevent overheating. For optimal performance and thermal management, it is recommended to use an input voltage in the range of 5V to 6V. For more information on the ESP32 power control system, we invite you to explore our Bengali tutorial titled Powering ESP32 with External Power. How to Program? The ESP32 can be programmed using various platforms, such as the Espressif IDE, Thonny IDE, PlatformIO with Visual Studio Code, and the Arduino IDE. A quick search on Google will yield numerous online tutorials covering these platforms. Some notable examples include: Installing the ESP32 Board in the Arduino IDE ESP32 Programming using Espressif IDE ESP32-Based Projects Health Monitoring System  Interfacing TFT LCD Touch Display with ESP32  ESP32 Google Sheet Data Logger ESP32 Arduino Examples Once you have installed ESP Boards via the Board Manager of Arduino IDE, you can find various example projects, including Blink, Digital Read Serial, Analog Read Serial, Button, PWM, WiFI Web Server, WiFi Web Client, etc.  From the Arduino IDE, go to Tools > Board and select esp32 > ESP32 Dev Module. Once you have the ESP32 board chosen, go to File > Examples. Inside that folder, you will find various example sketches for different functionalities like WiFi, Bluetooth, Sensors, and more. Warranty and Replacement TechShopBD offers up to one year of warranty and replacement support for its products, depending on the supplier(s) and product(s). The specific warranty duration for each product can be found on the respective product page. To be eligible for warranty and replacement support, customers must agree to our terms and conditions. Packaging Details 1 × ESP32 DEVKIT V1 Documents ESP32 DEV Kit V1 Datasheet ESP32 DEV Kit V1 Schematic ESP32 DEV Kit V1 Mechanical Dimension Attention Note: This item is non-returnable. If this item arrives damaged or is not functioning properly, please don’t hesitate to contact us to determine if further action is required. Need Help? Our engineers are available to assist you. 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