USB-C to 4 USB-A Hub V1
... show moreIntroducing my USB-C to 4 USB-A Hub V1, a compact and efficient solution for expanding your device's connectivity. Easily connect multiple USB-A peripherals to a single USB-C port. The USB-C and USB-A high speed differential pairs were done with the help of Flux Automated Impedance Control. #USBCHub #Connectivity #projectWiFi RF-ID lock reference design g7u8
... show moreThis project is a WiFi RF-ID Lock, which uses a Espressif ESP-8684 microcontroller for WiFi connectivity and a Handson Technology RC522 for RF-ID functionality. It also includes an OLED display and user control via a switch. A step-up power converter ensures consistent 3.3V power. #WiFi #MCU #ReferenceDesign #project #ESP8684 #lock #OLED #referenceDesign #simple-embedded #espressif #template #reference-designAvocAudio - Fully Placed-dacre
... show moreAvocAudio is a compact tinyML community board designed for extensive audio data collection for various tinyML applications. It leverages the Raspberry Pi RP2040 and integrates a LoRa-E5 LoRaWAN Transceiver Module for connectivity. Equipped with an SD card slot for local data storage, the board ensures efficient data collection. The board operates on solar power or a lithium-ion battery, ensuring flexible and efficient energy use. #audioDevices #raspberryPi #rp2040 #lorawan #iot #solarMotion Detector Reference Design
... show moreThis is a motion detector circuit using an ESP32 microcontroller and PIR sensor. It features USB-C connectivity, RGB LED indication, push buttons and is powered by a 3.3V supply. #referenceDesign #edge-computing #edgeComputing #espressif #template #iot #PIR #esp32 #reference-designLoST 3296 Board
... show moreThe LoST 3296 board features an Low Power STM32, an RFM95 Module for LoRA connectivity and a connector to interface different sensors. You can hook up a UART module, I2C module and a module using the RS485. The board is powered by the USB-C portAvocAudio: A tinyML community board v1
... show moreAvocAudio is a compact tinyML community board designed for extensive audio data collection for various tinyML applications. It leverages the Raspberry Pi RP2040 and integrates a LoRa-E5 LoRaWAN Transceiver Module for connectivity. Equipped with an SD card slot for local data storage, the board ensures efficient data collection. The board operates on solar power or a lithium-ion battery, ensuring flexible and efficient energy use. #raspberryPi #rp2040 #lorawan #iot #solarWiFi to IR Gateway Reference Design bN3H ntGi 4b20 3bd6
... show moreThis is a WiFi to Infrared (IR) gateway reference design leveraging an ESP32-S3 microcontroller for WiFi connectivity. It also incorporates a Type-C USB interface for data and power, 3 LEDs (red, green, & IR), and voltage regulation. It facilitates wireless control of IR devices, suitable for home automation projects. #referenceDesign #edge-computing #espressif #template #IR #project #reference-designTUSB8041IRGCT
... show moreThe TUSB8041, developed by Texas Instruments, is a four-port USB 3.0 hub intended for use in computer systems, docking stations, monitors, and set-top boxes, providing simultaneous SuperSpeed USB and high-speed/full-speed connections on the upstream port as well as on the downstream ports. This component supports battery charging features, enabling Charging Downstream Port (CDP) and Dedicated Charging Port (DCP) modes, compliant with the Chinese Telecommunications Industry Standard YD/T 1591-2009, and introduces an automatic mode for transparent support for BC devices and devices supporting Divider Mode charging solutions. It offers customization through OTP ROM, I2C EEPROM or via an I2C/SMBus slave interface for Vendor ID (VID), Product ID (PID), port customizations, and manufacturer and product strings. The TUSB8041 comes in a 64-pin RGC package and is available in both commercial (0°C to 70°C) and industrial (-40°C to 85°C) temperature ranges, part numbers TUSB8041 and TUSB8041I respectively, with an operating voltage requirement of 3.3V for I/O and 1.1V for the core. This hub doesn't require special drivers as it's designed to work seamlessly with any operating system supporting the USB stack, making it a highly adaptable solution for expanding USB connectivity in a wide range of applications.ESP32-H2-WROOM-03 Reference Design
... show moreThis project is an IoT development board based on the ESP32-H2-WROOM-03 module, featuring USB-C connectivity for power and communication. The board also includes two buttons, several decoupling capacitors, and a couple of connectors for peripheral connections. The onboard USB-to-UART bridge facilitates communication with a host device. #referenceDesign #esp32 #iot #esp32-h2 #project #template #reference-designRFID 6eb3
... show moreSeeed Studio XIAO ESP32C3 adopts new RISC-V architecture, supporting both Wi-Fi and BLE wireless connectivity. For Internet of Things applications, you will find it is flexible and suitable for all kinds of IoT scenarios. #SeeedStudio #xiaofirstPCB
... show moreThis project aims to develop a wearable and portable pregnancy monitoring system that continuously tracks key health parameters and provides real-time notifications to healthcare providers and family members. The solution integrates a comfortable, non-intrusive wearable device with embedded sensors, a mobile application, cloud connectivity, and machine learning algorithms to predict and manage potential complications.v2-pete
... show moreIntroducing my USB-C to 4 USB-A Hub V1, a compact and efficient solution for expanding your device's connectivity. Easily connect multiple USB-A peripherals to a single USB-C port. The USB-C and USB-A high speed differential pairs were done with the help of Flux Automated Impedance Control. #USBCHub #Connectivity #projectZoophagous Beige Matter Compiler
... show more- ESP32 DevKitC V4 (microcontroller) - 2x BME280 sensors (temperature, humidity, pressure) - 8ch relay board with 12VDC relays (NO/NC SPDT) - 12VDC power supply - USB connectivity - Various components (resistors, caps, opto couplers, op-amps, motor drivers, multiplexers) - 2x SPDT relay boards (for fan fail-safe) - 4x 2ch bidirectional level controllers (3.3V to 5V) - ESP32 GPIO 21 (SCL) to BME280's SCL - ESP32 GPIO 22 (SDA) to BME280's SDA - ESP32 GPIO 5 (digital output) to 8ch relay board input - ESP32 GPIO 25 (PWM output) -> Fan PWM (0-255 value) - ESP32 GPIO 26 (PWM output) -> Light PWM (0-255 value) - ESP32 GPIO 34 (analog input) -> Tachometer input (0-4095 value, 12-bit ADC) - Add a 5V voltage regulator (e.g., 78L05) to power the ESP32 and other 5V components - Add a 3.3V voltage regulator (e.g., 78L03) to power the BME280 sensors and other 3.3V components - Include decoupling capacitors (e.g., 10uF and 100nF) to filter the power supply lines - Ensure proper grounding and shielding to minimize noise and interference
-- Power supply: - VCC=12VD Available, to be used for LM358P - 5V voltage regulator (78L05) - VCC=5V, GND=0V - 3.3V voltage regulator (78L03)
- VCC=3.3V, GND=0V
- 3.3V voltage regulator (78L03) - VCC=3.3V, GND=0V - Fan PWM boost: - Input (3.3V PWM): 0-3.3V, frequency=20kHz - Output (5V PWM): 0-5V, frequency=20kHz - LM358P op-amp (unity gain buffer) - VCC=5V, GND=0V - R1=1kΩ, R2=1kΩ, R3=1kΩ, R4=1kΩ - C1=10uF (50V), D1=1N4007 - 0-10V signal conditioning: - Input (3.3V PWM): 0-3.3V, frequency=13kHz - Output (0-10V): 0-10V, frequency=13kHz - LM358P op-amp (non-inverting amplifier) - VCC=5V, GND=0V - R5=2kΩ, R6=1kΩ, R7=2kΩ, R8=1kΩ, R9=1kΩ, R10=2kΩ - C2=10uF (50V), R11=10kΩ (1%) ------------------------------------ Fan PWM Boost (3.3V to 5V): 1. ESP32 GPIO 25 (PWM output) -> R1 (1kΩ) -> VCC (3.3V) 2. ESP32 GPIO 25 (PWM output) -> R2 (1kΩ) -> Vin (LM358P) 3. LM358P (Voltage Follower): - VCC (5
- ESP32 DevKitC V4 (microcontroller) - 2x BME280 sensors (temperature, humidity, pressure) - 8ch relay board with 12VDC relays (NO/NC SPDT) - 12VDC power supply - USB connectivity - Various components (resistors, caps, opto couplers, op-amps, motor drivers, multiplexers) - 2x SPDT relay boards (for fan fail-safe) - 4x 2ch bidirectional level controllers (3.3V to 5V) - ESP32 GPIO 21 (SCL) to BME280's SCL - ESP32 GPIO 22 (SDA) to BME280's SDA - ESP32 GPIO 5 (digital output) to 8ch relay board input - ESP32 GPIO 25 (PWM output) -> Fan PWM (0-255 value) - ESP32 GPIO 26 (PWM output) -> Light PWM (0-255 value) - ESP32 GPIO 34 (analog input) -> Tachometer input (0-4095 value, 12-bit ADC) - Add a 5V voltage regulator (e.g., 78L05) to power the ESP32 and other 5V components - Add a 3.3V voltage regulator (e.g., 78L03) to power the BME280 sensors and other 3.3V components - Include decoupling capacitors (e.g., 10uF and 100nF) to filter the power supply lines - Ensure proper grounding and shielding to minimize noise and interference
ESP32-H2-WROOM-03 Reference Design e57n
... show moreThis project is an IoT development board based on the ESP32-H2-WROOM-03 module, featuring USB-C connectivity for power and communication. The board also includes two buttons, several decoupling capacitors, and a couple of connectors for peripheral connections. The onboard USB-to-UART bridge facilitates communication with a host device. #referenceDesign #esp32 #iot #esp32-h2 #project #template #reference-designSteep Yellow Flubber
... show moresmall UGV based with 4x brushless motor drivers Wifi and lora connectivity:battery connection is xt-90 pcb:) :RPI 4 mount with uart connectivity to EPS32-s3WiFi to IR Gateway Reference Design bN3H oBCN
... show moreThis is a WiFi to Infrared (IR) gateway reference design leveraging an ESP32-S3 microcontroller for WiFi connectivity. It also incorporates a Type-C USB interface for data and power, 3 LEDs (red, green, & IR), and voltage regulation. It facilitates wireless control of IR devices, suitable for home automation projects. #referenceDesign #edge-computing #espressif #template #IR #project #reference-designAvocAudio: A tinyML community board v1 3302
... show moreAvocAudio is a compact tinyML community board designed for extensive audio data collection for various tinyML applications. It leverages the Raspberry Pi RP2040 and integrates a LoRa-E5 LoRaWAN Transceiver Module for connectivity. Equipped with an SD card slot for local data storage, the board ensures efficient data collection. The board operates on solar power or a lithium-ion battery, ensuring flexible and efficient energy use. #raspberryPi #rp2040 #lorawan #iot #solarThe Green Dot 2040E5 Board nkFU
... show moreThe "Green Dot 2040E5" Board is a Node that interfaces RS485 Sensor probes and can log information to the cloud using LoRa Connectivity. It uses the XIAO RP2040 and the LoRa-E5 (STM32WLE5JC) modules from Seeed Studio to do its magic. It also has amazing power management capabilities (Solar charging, Battery protection, etc) that make it very useful for IoT applications #Seeed #XIOA #LoRa #RP2040 #IoTESP32-H2-WROOM-03 Reference Design 55C9
... show moreThis project is an IoT development board based on the ESP32-H2-WROOM-03 module, featuring USB-C connectivity for power and communication. The board also includes two buttons, several decoupling capacitors, and a couple of connectors for peripheral connections. The onboard USB-to-UART bridge facilitates communication with a host device. #referenceDesign #esp32 #iot #esp32-h2 #project #template #reference-designUSB-C to 4 USB-A Hub V1
... show moreIntroducing the USB-C to 4 USB-A Hub V1, a compact and efficient solution for expanding your device's connectivity. Easily connect multiple USB-A peripherals to a single USB-C port. #USBCHub #Connectivity #projectCommon Cyan Tricorder e66a
... show moreConnectivity: USB, Ethernet Domain: space Application: satellite Human interface: Joystick Operating voltage: 3.3V, 9V Operating temperature: -40 to +85C Target cost: $100 Reliability: 10,000 MTBFThe Green Dot 2040E5 Board g9ix
... show moreThe "Green Dot 2040E5" Board is a Node that interfaces RS485 Sensor probes and can log information to the cloud using LoRa Connectivity. It uses the XIAO RP2040 and the LoRa-E5 (STM32WLE5JC) modules from Seeed Studio to do its magic. It also has amazing power management capabilities (Solar charging, Battery protection, etc) that make it very useful for IoT applications #SeeedStudio #XIAO #LoRa #RP2040 #IoTAvocAudio: A tinyML community board v1 4RvA
... show moreAvocAudio is a compact tinyML community board designed for extensive audio data collection for various tinyML applications. It leverages the Raspberry Pi RP2040 and integrates a LoRa-E5 LoRaWAN Transceiver Module for connectivity. Equipped with an SD card slot for local data storage, the board ensures efficient data collection. The board operates on solar power or a lithium-ion battery, ensuring flexible and efficient energy use. #raspberryPi #rp2040 #lorawan #iot #solarESP32-H2-WROOM-03 Reference Design
... show moreThis project is an IoT development board based on the ESP32-H2-WROOM-03 module, featuring USB-C connectivity for power and communication. The board also includes two buttons, several decoupling capacitors, and a couple of connectors for peripheral connections. The onboard USB-to-UART bridge facilitates communication with a host device. #referenceDesign #esp32 #iot #esp32-h2 #project #template #reference-design