Logic voltage first, then pins, then the wireless it really has · review
A long-selling, very cheap ESP32 board with dual-core Wi-Fi and Bluetooth, supported in the Arduino IDE.
About $10.
Thin, so check the USB type.
Sensors, home automation and learning.
Prices quoted in this text are dated readings and can differ from the live price in the buy box.
| MCU | ESP32, dual core |
|---|---|
| Wireless | Wi-Fi + Bluetooth |
| Modes | AP, STA, AP+STA |
| Software | Arduino IDE |
| Amazon ASIN | B0718T232Z |
Yes.
ESP32 GPIO is 3.3 V logic. Do not apply 5 V.
8.0/ 10
Solid and cheap.
workshop machines from the same category, at nearby prices. Only what all of them publish is shown: a column with holes compares nothing.
| Model | Price | MCU |
|---|---|---|
| HiLetgo ESP-WROOM-32 | $10 | ESP32, dual core |
| ELEGOO UNO R3 Board | $17 | ATmega328P + ATmega16U2 |
| Raspberry Pi Pico 2 W | $17 | RP2350: Cortex-M33 or RISC-V, 150 MHz |
| Arduino Nano ESP32 with Headers | $19 | ESP32-S3, dual-core, 240 MHz |
A hobbyist who needs one cheap wireless board.
Specifications: the manufacturer sheet for maker machines and tools and the matching Amazon product page. Prices and availability: Keepa. Every figure on this page names its source.
Small board · ESP32-S3, 240 MHz · Wi-Fi, Bluetooth 5.0 · USB-C · HID · MicroPython · headers
A Nano-sized board with an ESP32-S3 at 240 MHz, Wi-Fi and Bluetooth 5.0, USB-C and MicroPython support, with headers fitted.
Best for: A builder fitting wireless into small projects.
≈ $19
Small board · ATmega328P · 14 digital, 8 analog · mini-USB
The classic Arduino Nano in a compact shape, with an ATmega328P, 14 digital and 8 analog pins and a mini-USB port.
Best for: A builder placing an Uno-class chip in a small project.
≈ $26
Board · Renesas RA4M1 + ESP32-S3 · Wi-Fi, Bluetooth 5.0 · USB-C · CAN · 12-bit DAC · Qwiic · 12 × 8 LED matrix
A modern Uno pairing a Renesas RA4M1 with an ESP32-S3 for Wi-Fi and Bluetooth, plus USB-C, CAN, a 12-bit DAC and an LED matrix.
Best for: A learner who wants wireless with Arduino support.
≈ $28
