Wireless digital full-duplex intercom solution (circuit + source code)

Schematic PCB

RTL8822BS module peripheral application reference circuit and driver information

For the integration of wifi module, the most urgent things in the early stage are
1: the application reference of wifi module peripheral circuit in hardware
2: the driver information in software

Schematic PCB

[Open Source] Using ESP32C3 to make a mini quadruped robot

Schematic PCB

RTL8822CS Module Hardware Reference Design Guide

Schematic PCB

ThinkBoard LoRa Node development board based on ESP32 (reference solution)

Schematic PCB

High-quality Bluetooth speaker design reference

Although the common Bluetooth speakers on the market are relatively cheap, their sound quality is far from satisfactory and cannot meet people's pursuit of high-quality sound. The fundamental reason is that the Bluetooth speaker box is too small and the speaker is too small, resulting in a serious lack of bass; the resonance of the plastic box causes muddy sound; the speaker is too close and the near-field sound is too narrow, etc. This design reference integrates the MaxxAudio sound enhancement chip NPCA110P, which greatly improves the problems of muddy sound, insufficient bass, and narrow near-field sound.

Schematic PCB

DIY Portable 1.8V Power Supply (Reference Design)

Schematic PCB

Harry Potter style Bluetooth speaker design

Schematic PCB

Open source smart bracelet project reference solution based on NRF51822

Schematic PCB

Schematic diagram of Bluetooth card reader small speaker

Schematic PCB

1 Mux/SPDT Audio Switch Evaluation Board EVAL-ADG884EBZ

Schematic PCB

Freescale's MKM14Z64-based smart socket reference design

Schematic PCB

GigaDevice GDM_WIFI_01 Embedded Wi-Fi Module Solution

Schematic PCB

Motion Sensor Stopwatch Design Information (Schematic + Source Code)

Schematic PCB

QCA9379 Application Reference Schematic

QCA9379 is a Qualcomm solution, USB interface dual-channel 11ac standard high-performance WIFI solution, sharing the schematic diagram for easy evaluation and selection.

Schematic PCB