These are the full-stack builds: a sensor on one end, a dashboard on the other, and everything in between — WiFi, MQTT, cloud APIs, and battery strategy. If you’re moving from blinking LEDs to systems that run unattended for months, start here. The boards below are the ones we reach for in our own client work.
Shop the parts used in these tutorials
ESP32-DevKitC-VE Pre-Soldered Dev Board with 8MB Flash + 8MB PSRAM
$24.99
ESP8266 NodeMCU Development Board with 0.96 Inch OLED Display, Type-C, Pre-Soldered with Foam
$9.99
W5500 SPI Ethernet Network Module for Arduino & ESP32
$11.99
SX1262 ESP32-S3 0.96" Blue OLED Bluetooth & WiFi Development Board for Arduino, 868-915MHz, with Antenna, Pre-Soldered
$24.99
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Build a long-range LoRa sender-receiver link with two Raspberry Pi Pico W boards using AT-command modules for low-power IoT prototypes from ShillehTek.