HiLetgo 2pcs ESP32-DevKitC ESP32-WROOM-32U Core Board ESP32 ESP-32 ESP-WROOM-32U Development Board for Arduino
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Free returns are available for the shipping address you chose. You can return the item for any reason in new and unused condition: no shipping charges
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Purchase options and add-ons
Brand | HiLetgo |
Connectivity Technology | USB |
Wireless Communication Standard | 802.11b |
Processor Count | 2 |
About this item
- ESP32-DevKitC ESP32-WROOM-32U Core Board
- ESP32 ESP-32 ESP-WROOM-32U Development Board
- ESP32-DevKitC V4 is a small-sized ESP32-based development board.
- Most of the I/O pins are broken out to the pin headers on both sides for easy interfacing.
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Product details
- Package Dimensions : 5.12 x 3.11 x 0.63 inches; 0.81 ounces
- Item model number : 3-01-1670
- Date First Available : October 28, 2021
- Manufacturer : HiLetgo
- ASIN : B09KLS2YB3
- Best Sellers Rank: #164 in Single Board Computers (Computers & Accessories)
- Customer Reviews:
Product Description
Overview:
ESP32-DevKitC V4 is a small-sized ESP32-based development board. Most of the I/O pins are broken out to the pin headers on both sides for easy interfacing. Developers can either connect peripherals with jumper wires or mount ESP32-DevKitC V4 on a breadboard.
Description:
ESP32-WROOM-32: A module with ESP32 at its core.
EN: Reset button.
Boot: Download button. Holding down Boot and then pressing EN initiates Firmware Download mode for downloading firmware through the serial port.
USB-to-UART Bridge: Single USB-UART bridge chip provides transfer rates of up to 3 Mbps.
Micro USB Port: USB interface. Power supply for the board as well as the communication interface between a computer and the ESP32 module.
5V Power On LED: Turns on when the USB or an external 5V power supply is connected to the board. For details see the schematics in Related Documents.
I/O: Most of the pins on the ESP module are broken out to the pin headers on the board. You can program ESP32 to enable multiple functions such as PWM, ADC, DAC, I2C, I2S, SPI, etc.
Package included:
2* ESP32-DevKitC ESP32-WROOM-32U Core Board
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As mentioned in the above headline the board is designed to be used with an external antenna for WiFi usage. You will notice the gold plated antenna connector is located in a notch in the corner of the metal card. It is for the antenna. Here is an antenna with coax and connector that will fit the board connector: Gain=8dBi (or 6.3 times gain isotropic ) RP-SMA Male WiFi Antenna + 20cm U.FL to RP-SMA Female Extension Cable for Mini PCIe Slot - Amazon supplier,Tenmory Store. Note, the antenna connector can be installed by first centering with the board connector and pinching with your fingers. You should get more than 100 foot coverage using this antenna in an open space. There is no change required in jumpers or wiring required.
That's especially true for Rust users - RISC-V is fully supported after you run the single `rustup` installation command. However, Xtensa boards require an extensive setup, which is unsuitable for beginners. Afterward, you'll likely face weird, undocumented problems that leave you running scripts for hours.
If you do end up with this version, there are limited online resources to assist you. The setup documentation isn't detailed, and some pages are contradictory...
As such, I don't recommend this version of the board. Grab some fancy RISC-V revision - you won't regret it!
Reviewed in the United States on January 1, 2024
That's especially true for Rust users - RISC-V is fully supported after you run the single `rustup` installation command. However, Xtensa boards require an extensive setup, which is unsuitable for beginners. Afterward, you'll likely face weird, undocumented problems that leave you running scripts for hours.
If you do end up with this version, there are limited online resources to assist you. The setup documentation isn't detailed, and some pages are contradictory...
As such, I don't recommend this version of the board. Grab some fancy RISC-V revision - you won't regret it!
While I haven't tested the range, I'm not expecting a mile range line of sight. It's a ~$8 microcontroller and you get what you pay for. If you want RANGE and PERFORMANCE, then expect to pay for it. This is a hobbyist's chip, it is not designed for engineering projects that actually require specifications to be met. Buy this to experiment and learn with or just for the fun of it, but don't buy it expecting top notch performance for the price. You will be disappointed with that expectation.
If you expect it to just be a useful thing to learn with and maybe do something useful with, then your expectations are more in line with reality. :)