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ESP32 38-Pin Wi-Fi + Bluetooth Development Board $5 + $3 Delivery (Free Over $50) @ Zaitronics

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Product Information
The ESP32 CP2102 development module is a powerful and versatile platform designed for Internet of Things (IoT) applications. It seamlessly integrates the capabilities of the ESP-WROOM-32 module with the USB serial port chip CP2102. Whether you’re building smart devices, sensors, or communication modules, the ESP32 CP2102 provides the flexibility and performance needed for your projects.

Key Specs

ESP-WROOM-32 Module:
Dual-core 32-bit LX6 microprocessor with a clock frequency of up to 240 MHz.
520 KB SRAM, 448 KB ROM, and 16 KB RTC SRAM.

Wireless Connectivity:
802.11 b/g/n Wi-Fi with speeds up to 150 Mbps.
Supports both Classic Bluetooth v4.2 and BLE specifications.

GPIOs:
34 programmable GPIOs for versatile interfacing.

Analog-to-Digital Conversion:
Up to 18 channels of 12-bit SAR ADC and 2 channels of 8-bit DAC.

Serial Connectivity:
4 x SPI, 2 x I2C, 2 x I2S, 3 x UART.

Ultra-Low Noise Analog Amplifier.

Integrated PCB Antenna:
On-board PCB antenna with a gain of 2 dBi.

Common Accessories

Breadboards 400 or 830 tie-point breadboard would be fine
Breadboard Power Supply Can operate at 3.3V & 5V
ESP32 38 Pin Expansion Shield Great for rapid prototyping and adding additional connections to sensors, module, and other peripherals.

Related Stores

Zaitronics
Zaitronics

Comments

  • +3

    For anyone wondering, this variant they're selling still has the old USB-A micro connector instead of the USB-C connector.

    Personally I'd prefer to spend a little more on the upgraded version w/ USB-C for ease of use.

  • Might finally make me get around to putting a sensor in my letter box… Haven't played around with MicroPython before, how does the ESP32 handle the load from additional libraries?

    • For when you do, how do you get power to it? I'm thinking about looking into this. Thanks.

      • +1

        Haven't tackled this myself, but I've seen small solar and battery set ups that do the job nicely.

        • Solar or tbh I have noted using an powertool battery and a car to usb charger as a voltage converter has been surprisingly power efficient on the bench when developing sensors… so thought I might see how long i can go between charges if i just make it update 2x a day or something using rtc.

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