Using ESP8266 to implement Alexa-controlled infrared remote control

Let’s see how to easily hack a remote control using ESP8266.

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PD85050S based RF power module for mobile radio applications

PD85050S based RF power module for mobile radio applications

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RDR-912 - 6.6W non-isolated buck converter for small appliances based on LinkSwitch-TN2

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KL46Z Magnetic Rotary Encoder Reference Design

Magnetic rotary encoder for angle measurement with contact-free knob

OM14510-SJA1105TJP: Automotive Ethernet switch application board

OM14510/SJA1105TJP is an application board used to evaluate SJA1105EL and SJA1105TEL

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Automotive 2MHz Class D 4-channel 21W audio amplifier reference design in Class AB form factor

The TIDA-00743 reference design is a small module designed to evaluate a digital input Class D audio amplifier in a system dedicated to the classic Class AB audio power amplifier module. This design demonstrates the power loss reduction that a Class D amplifier can achieve. This design demonstrates how the 2.1MHz operation of the TAS6424-Q1 enables a compact power amplifier solution.

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TJA1100HN 100BASE-T1 Automotive Ethernet PHY - Customer Evaluation Board

The OM14500/TJA1100 is designed for rapid evaluation of the TJA1100HN PHY. It has direct access to MDI and MII/RMII interfaces and chip configuration bits

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OM15020: JN5169 USB Dongle for ZigBee

Running posture training shoes

This design is designed for foot posture. Wrong running posture can be corrected through real-time prompts on the mobile phone APP, thereby solving various adverse consequences caused by incorrect running posture.

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Universal motor control evaluation board based on STM8S103F2 MCU and T1235T Triac

Universal motor control evaluation board based on STM8S103F2 MCU and T1235T thyristor

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CN0337

带三线式补偿的12位、300 kSPS、单电源、完全隔离式RTD温度测量系统

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Lakewood (MAXREFDES7#): 3.3V input, ±12V (±15V) output isolated power supply

This document details the Lakewood (MAXREFDES7#) subsystem reference design, a 3.3V input, ±12V (±15V) output, isolated power supply. The Lakewood reference design includes a 3W primary-side transformer H-bridge driver for isolated supplies, and two wide input range and adjustable output low dropout (LDO) linear regulators. Test results and hardware files are included.

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12Gbps multi-channel BERT board reference design

This reference design is a 12Gbps low-cost bit error tester (BERT) that generates and checks up to 8 channels of pseudo-random binary sequences (PRBS). This proven design provides a convenient way to generate multi-lane high-speed serial bit streams up to 12Gbps and inspect the incoming serial bit stream for bit errors. This design can be used as a handheld BERT to evaluate the signal integrity and bit error performance of high-speed subsystems.

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Resonant LCC 90W notebook power adapter based on L6599 and STP9NK50ZF

Resonant LCC 90 W laptop power adapter based on L6599 and STP9NK50ZF

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GD32E231 incense machine control board

The incense machine control board is based on GD32E231 as the main control, using timers and PWM to control the running time and intensity of the DC pump. The 4-phase 5-wire stepper motor is ideal for lifting and lowering perfume bottle replacement and installation. The display uses the commonly used ST7567 main control 12864 display screen, which can intuitively display the working status of the incense machine.

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CN0290

Extending the low-frequency range of high-performance phase-locked loops

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PocketSprite: a handheld game console based on ESP32

PocketSprite is more than just a small gaming device that clips to your keychain, it's an open source, powerful and mature hardware development platform.

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FRDM-FXS-MULT2-B: Freedom development platform for NXP sensors with Bluetooth®

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Corona (MAXREFDES12#): Isolated, eight-channel, industrial digital input level translator/serializer

This document explains how the Corona (MAXREFDES12#) subsystem reference design provides a compact and simple isolated digital input interface for industrial control and automation applications. Hardware and firmware design files are provided.

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Design of automatic goldfish feeding robot based on GD32E231

If you are away from home for a long time on a business trip, the goldfish at home will starve. Therefore, in order to prevent goldfish from starving when the owner is not at home, an automatic feeding robot was designed based on a 4-degree-of-freedom robotic arm and GD32E231. GD32E231 controls the robotic arm by generating PWM. At the same time, it picks up fish food from a fixed place and puts it into the fish tank according to the preset time. Through multiple manual trainings, the robotic arm automatically calculates the feeding based on the manual training data. eating position. At the same time, you can also add some auxiliary functions. You can roughly obtain the internal temperature of GD32E231 and the lighting conditions around the fish tank through the serial port or onboard ADC and photoresistor. You can turn on lighting equipment such as desk lamps when it is dark.

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