Guides

What Is LoRa? Wiring and Errors (2026)

LoRa explained: the range-vs-bandwidth trade-off, the LoRa library pattern, and the easiest board to start on. India pricing (COD).

What Is ESP-NOW? Wiring and Errors (2026)

ESP-NOW explained: peer-to-peer over 2.4GHz, why use it over WiFi, and a real receiver-callback sketch. India pricing (COD).

What Is Bluetooth Classic? Wiring and Errors (2...

Bluetooth Classic explained: SPP/A2DP/HFP profiles, which ESP32 boards support it, and a real BluetoothSerial sketch. India pricing (COD).

What Is BLE? Pinouts, Wiring, and Common Errors...

BLE explained: peripheral vs central, GATT services, and the HM-10 module for boards with no built-in BLE. India pricing (COD).

What Is WiFi? Wiring and Errors (2026)

WiFi explained: WiFi.begin, the connect-do-power pattern, and the ADC2-vs-WiFi pin gotcha on an ESP32. India pricing and where to buy (COD).

What Is Deep Sleep? Wiring and Errors (2026 Guide)

ESP32 Deep Sleep explained: the 10uA power draw, wake sources, RTC memory, and a real boot-count sketch. India pricing (COD).