【RA】Renesas MCU+1162240A

Introduction: Design verification based on Renesas development board.

Schematic PCB

Highly sensitive light intensity sensor

Introduction: Light intensity sensor based on BH1750

Schematic PCB

Desktop bluetooth small speaker

Introduction: A small desktop speaker using the M18 Bluetooth module and pam8403 Class D amplifier, with a simple circuit and good sound quality.

Schematic PCB

Power amplifier, fully discrete components

Introduction: Discrete component analog circuit high-fidelity power amplifier, the measured sound quality is perfect!

Schematic PCB

Bluetooth 2.1 power amplifier board

Introduction: Using the TEA2025B Bluetooth 2.1 amplifier board, the sound is sweet and the sound quality is good. The 2.1 is a separate subwoofer, making listening to music more exciting.

Schematic PCB

TDA2050 power amplifier

Introduction: Stereo TDA2050 power amplifier, verified!

Schematic PCB

4+1 docking station

Introduction: 4 plus 1 USB 2.0 docking station made with FE1.1S chip, low-cost solution!

Schematic PCB

Data line detection board

Introduction: Very simple data line continuity detection board

Schematic PCB

Adjustable bright flashlight

Introduction: 12-watt strong flashlight, using pure hardware design mos tube linear dimming, 4 3-watt lamp beads, 15-degree lens manual strobe, capable friends can add a ne555 chip to automatically strobe, this is the suggestion of netizens , I’m going to work on the next project!

Schematic PCB

Sound simulation acquisition module, microphone module

Introduction: A pure discrete component sound collection module that outputs analog signals and can be used with another level light module of mine. The effect is very good.

Schematic PCB

M18 Bluetooth module adapter board

Introduction: M18 Bluetooth module adapter board, Bluetooth music receiver

Schematic PCB

Rhythm beacon music level light

Introduction: Music level light with full analog circuit, music level light with full analog circuit, named Rhythm Lighthouse!

Schematic PCB

IC card

Introduction: campus card, NFC PCB card

Schematic PCB

Electric batch pcb

Introduction: Electric screwdriver, electric screwdriver

Schematic PCB

Brushless ESC

Introduction: A brushless motor driver board using STC15W408AS as the main control. The schematic diagram and firmware program are from the blogger (War World), and the pcb is drawn independently.

Schematic PCB

Strobe light controller

Introduction: A strobe controller that uses the ne555 timer to generate time pulses and a transistor to amplify and drive the relay.

Schematic PCB

Xuerongrong

Introduction: Mascot of the 2022 Beijing Paralympic Winter Games-Xue Rongrong

Schematic PCB

Power bank based on IP5306

Introduction: Power bank based on IP5306

Schematic PCB

UT61E backlight + automatic shutdown

Introduction: UT61E backlight + automatic shutdown serial port switching transformation, saving power and not disturbing the watch

Schematic PCB

PAD screen board

Introduction: https://oshwhub.com/wxdw/lan-ya-shuang-mu-pad oled screen display board with numeric keyboard

Schematic PCB