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technology. ESP32-PICO-D4 integrates all peripheral components seamlessly, including a
crystal oscillator, flash, filter capacitors and RF matching links in one single package. Given
that no other peripheral components are involved, module welding and testing is not required
either. As such, ESP32-PICO-D4 reduces the complexity of supply chain and improves control
efficiency. With its ultra-small size, robust performance and low-energy consumption, ESP32-
PICO-D4 is well suited for any space-limited or battery-operated applications, such as
wearable electronics, medical equipment, sensors and other IoT products.