About this item

The 3.3 V Adapter Board serves as a practical interface for NRF24L01+ wireless transceivers, enabling seamless use of these modules with 5 V systems, like Arduino. Equipped with an onboard AMS1117‑3.3 linear voltage regulator, it effortlessly steps down 4.8 – 12 V inputs to a stable 1.9 – 3.6 V output—perfectly tuned for the sensitive 3.3 V requirement of the NRF24L01+. The board includes bypass capacitors to enhance voltage stability, while a small SMD LED provides a clear visual indicator of power status. Compact yet durable FR4 construction ensures hassle-free mounting, and clearly marked input/output pins simplify wiring. Operating with low current draw (around 12 mA), this adapter promotes robust NRF24L01 performance without exposing it to overvoltage risk. Given the NRF24L01’s sensitivity to voltage fluctuations, having a reliable power source is essential. Many users also recommend adding a 10 µF or larger capacitor across VCC and GND close to the module to absorb transmission‑related current spikes and maintain signal integrity