Hamster Mix: Portable open source Bluetooth MIDI controller with Arduino and ESP32 (schematics, source code, etc.)

Hamster Mix is ​​a portable MIDI controller powered by Arduino that connects to MIDI via Bluetooth. It allows you to control effects and play MIDI notes in 5 octaves. Twelve keys and the ability to switch up and down through the octave make it easy to control the notes of an entire keyboard piano using our compact controller (about the size of a hamster). Hamster Mix connects to Mac, PC, Ipad and even mobile phones via Bluetooth. You can control any MIDI-enabled music program such as Ableton, Garage Band, FL Studio, Reaper, etc. Two additional buttons and two potentiometers allow you to set up your own custom effects. You can even use the buttons as a Bluetooth track launcher instead of a keyboard. You can control MIDI-enabled mobile applications such as GarageBand, FL Studio Mobile, Reason Compact, Audiokit Synth One, Moog applications, and more. Make music on the go with Hamster Mix, which fits in your pocket, meaning no wires or bulky equipment.

Schematic PCB

Hipoink: Small open source e-paper display updated and wirelessly powered via NFC (schematic and source code)

HiPo is a 3.52-inch e-paper display module the size of a business card. Content is uploaded via NFC via a convenient app, no batteries required. The development board can compile different display functions by editing the code.

Schematic PCB

ANT BBPS: A small, portable and elegant open source OLED breadboard power supply (schematic, source code)

ANT BBPS displays voltage, current and power on an OLED display. It features digitally controlled current limit, wide input voltage range and up to 12 V DC output. It also has two input connections, a USB type-C connector and a screw terminal. A USB input means a battery pack can easily be used as your power source, and the screw terminals allow any other input source to be connected, such as AA and 9 V batteries, or even that old 7 V wall adapter you might have lying around.

Schematic PCB

BPW34 photodiode acts as a solar cell to make a supercapacitor watch (schematic diagram, etc.)

The standby time is acceptable and in good condition, more than 7 days.

Schematic PCB

Plant Bot: an open source project for caring for potted plants based on ESP32

Plant Bot is an open source project based on ESP32 that allows a single PCB to perform the functions of detecting humidity, watering, providing lighting, and controlling and communicating with the user via WiFi/BLE.

Schematic PCB

ESP32Picoremote: ESP32 WiFi remote control with TFT display, mini TV, capable of playing GIFs

The WiFi remote control is based on ESP32 Pico D4 MCU and 160x80 pixel mini TFT display. Additionally, there are onboard I2C temperature and humidity sensors and an accelerometer.

Schematic PCB

Offline isolated 3W 5V power supply based on CoolSET™ ICE3RBR4765JG current mode controller

3W 5V Flyback 180 to 265VAC Reference Design An offline isolated 3W 5V power supply based on the CoolSET™ ICE3RBR4765JG current mode controller.

45W 19V Adapter Reference Board with 700V CoolMOS™P7 Superjunction MOSFET in SOT-223 Package

This 45W adapter reference board is designed to be a form, fit and functional test platform for low-cost charger applications to demonstrate the state-of-the-art 700V CoolMOS™ P7 Super Junction (SJ) MOSFETIPN70R600P7S in SOT-223 packaging. The reference adapter board is designed to fit into an extremely small form factor while featuring high efficiency, low standby power and various protection modes to achieve a highly reliable system. The board passes EMI (conducted and radiated), ESD immunity and surge testing and is ready for production after final verification by the customer with a small number of changes.

650 V 400 A six-cell automotive qualified IGBT module

The HybridPACK™ 1 is an automotive qualified power module designed for hybrid electric vehicle (HEV) applications in the 20–30kW power range.

650 V 200 A six-cell automotive qualified IGBT module

HybridPACK™ 1 is an automotive qualified power module designed for hybrid electric vehicle (HEV) applications in the 20–30kW power range

25W-500W scalable output power Class D audio power amplifier reference design

25W-500W scalable output power Class D audio power amplifier reference design. Using IRS2092 protected digital audio driver

Schematic PCB

35W Brick Adapter Reference Board

This is a 35W 19.0V/1.84A USB adapter reference design using quasi-resonant PWM integrated circuit ICE2QS03G, CoolMOS™ IPD60R600P6 (DPAK), 2 small signal low voltage MOSFETs 2N7002 and high-speed switching diode BAS21-03W in a short brick shape , peak power is 45W, lasting 2 milliseconds.

REF-10W ADAPTER: 10.5W 5.0V USB Adapter Reference Design

This is a 10.5W 5.0V USB adapter reference design using Infineon's quasi-resonant PWM integrated circuit ICE2QS03G and CoolMOS™ IPU60R950C6 (IPAK), with a small form factor architecture and multiple protection modes to achieve high system reliability.

65W USB-PD/PPS power adapter solution using EZ-PD™ PAG1 and CoolGaN™

This 65W Type-C PPS reference design uses Infineon's EZ-PD™ PAG1S and PAG1P controllers and CoolGaN™ 600V GIT HEMT. The solution complies with international energy efficiency standards including DoE Level 6/CoC Level 2 and has low standby power. The solution is tested to CE standards defined by CISPR32 Class B and provides a high board-side power density of 22.16 W/in3. This solution is designed for use with USB PD (including PPS), QC power adapters. Adapters covering traditional charging protocols including Apple Charging, BC1.2, QC 3.0 and Samsung AFC are also supported. PAG1S and PAG1P jointly provide low BOM cost, high-performance solutions compatible with PD/PPS/QC.

Schematic PCB

43 W high power factor constant voltage output flyback converter based on ICL8820

REF_ICL8820_LED_43W_JT This 43 W reference design uses Infineon's high power factor flyback controller ICL8820. The evaluation board is a constant voltage (CV) secondary side regulation (SSR) system designed for use with a constant current (CC) converter for LED lighting applications.

45W USB-PD/PPS power adapter solution using EZ-PD™ PAG1 and CoolGaN™

This 45W Type-C PPS reference design uses Infineon's EZ-PD™ PAG1s and PAG1P controllers and CoolGaN™ 600V GIT HEMT. The solution complies with international energy efficiency standards including DoE Level 6/CoC Level 2, and its standby power can be as low as less than 30 mW. The solution is tested to CE standards defined by CISPR32 Class B and achieves a high board-side power density of 17.71 W/in3. This solution is designed for use with USB PD (including PPS), QC power adapters. Adapters covering traditional charging protocols including Apple Charging, BC1.2, QC 3.0 and Samsung AFC are also supported. PAG1S and PAG1P jointly provide low BOM cost, high-performance solutions compatible with PD/PPS/QC.

Schematic PCB

65 W USB-PD dual-port reference design using EZ-PD™ PAG1S+P and CCG7D

This 65 W USB-PD type-C PPS charger reference design uses Infineon's EZ-PD™ PAG1S and PAG1P P controllers, EZ-PD™ CCG7D PD controller, and Infineon's high-voltage CoolMOS™ superjunction MOSFETs. The solution complies with DoE Level 6 international energy efficiency standards and passes conducted emissions testing in accordance with the EN 55032 B standard.

Schematic PCB

65W USB-C power adapter solution using EZ-PD™ PAG1

The 65W power adapter reference design is based on the EZ-PD™ PAG1s and PAG1P controllers. The solution complies with international energy efficiency standards including DoE Level 6/CoC Level 2 and passes conducted emissions testing as specified in the EN 55032 B standard. This solution is designed for use with USB-C PD (including PPS), QC power adapters. Adapters covering traditional charging protocols including Apple Charging, BC1.2, QC 3.0 and Samsung AFC are also supported. PAG1S and PAG1P together provide low BOM cost and high-performance solutions compatible with PD/PPS/QC.

Schematic PCB

15W 5V charger reference design using 700V CoolMOS™P7

This is a 15W 5.0V/3.0A USB adapter reference design using an AC-DC quasi-resonant PWM controller IC (ICE2QS03G), an IPAK packaged 700V CoolMOS™ P7 SJ MOSFET (IPS70R1K4P7S), an OptiMOS™ 60V low voltage power MOSFET ( BSC067N06LS3G) and high-speed switching diodes (BAS21-03W), shaped like slim plugs with various protection modes.

65W USB-PD switching power supply reference design using XDPS21081

This is a reference design for a 65W USB-PD type C charger with a small form factor. Reference designs are designed to demonstrate performance by meeting various industry specifications and allowing for small form factor design requirements. Using Infineon digital flyback controller XDPS21081, 600V CoolMOS™ C7 superjunction MOSFET (IPL60R185C7), OptiMOS™ PD synchronous rectification MOSFET (BSC0802LS), 30V OptiMOS™ MOSFET (BSZ0905PNS) as a safety switch, small signal MOSFET (BSL606SN) and the EZ-PD™ CCG3PA USB Type-C controller.

Schematic PCB