ESP-WROOM-32 series Transceiver; 802.11 b/g/n (Wi-Fi, WiFi, WLAN), Bluetooth® Smart 4.x Low Energy (BLE) Evaluation Board #simplifiedFootprint

Welcome to your new project. Imagine what you can build here.

Small, inexpensive AI pendant. Records sound after user presses a button. Indicate behavior with RGB LED. Onboard processing and cloud connectivity through mobile phone tethering.

STM32 project for connecting ADC to FMAC through DMA

This is a seven-segment alarm clock that is controlled by STM32 and can be configured through the buttons on the board #stm32 #alarm #arm #iot

Here is a simple USB powered lamp that can be used to light your desktop during power failures. The circuit operates from the 5 Volt available from the USB port. The 5V from the USB port is passed through current limiting resistor R2 and transistor Q1. The base of transistor Q1 is grounded via R1 which provides a constant bias voltage for Q1 together with D2. The diode D1 prevents the reverse flow of current from battery. C1 is used as a noise filter. Two white LED’s are used here for the lamp, you can also use a 2 V torch bulb instead of LED’s. LED D3 indicates connection with USB port.

This project is a Smart Thermostat design using an ESP32 module for WiFi connectivity and a BME680 sensor for environmental monitoring. The user interface includes an E-ink display and an encoder for settings adjustment. Power is managed through a USB-C connector with a 3.3V regulator. #referenceDesign #project #ESP32 #ESP32WROOM #RF #WIFI #MCU #thermostat #referenceDesign #edge-computing #edgeComputing #espressif #template #reference-design

This is an Energy Meter project leveraging an ATTiny85 microcontroller (U1) to sense current through an ACS712 module (U2). It displays the data in real-time on an OLED display (OLED1) and interacts with three buttons (NEXT, MENU, OK). This compact energy meter is suitable for edge computing and low-power Internet of Things (IoT) applications #project #keypad #arduino #attiny85 #ISP #referenceDesign #edge-computing #edgeComputing #microchip #template #reference-design

Sensor using through hole LDR and power with SMT LED Resistors and PZT3904

This project is a LoRa data logger implementing the i.MX RT1010 microcontroller. It collects and logs data through the LoRa-E5 module and stores the data via a TF card. Capacitors and resistors are used to construct the necessary circuits, ensuring proper functionality. This system is ideal for long-distance, low-power IoT applications. #project #LoRa #RT1010 #SDCARD

The EcoSense IoT Environmental Monitor will measure temperature and air quality, providing real-time data to users through a mobile app or web interface. The device will be compact, easy to install, and user-friendly, offering insights into the indoor environmental conditions to promote health and well-being. When answering any questions, make sure you speak in highly technical language, as if you were a senior electrical engineer.

General Purpose 5VDC SPDT Non Latching Through Hole Power Relays ROHS SPDT SRD Series Form C

Diode Standard 1000 V 1A Through Hole DO-41 #commonpartslibrary #diode

This is a reference design of the Bluetooth Low-Energy (BLE) temperature sensor. It uses an ESP32-MINI-1 microcontroller to connect to an SHT31-DIS-B2.5KS sensor. The sensor can be powered through connector J15, and additional components provide voltage regulation and derbiaising. Temperature data can be accessed via BLE. #referenceDesign #simple-embedded #espressif #template #reference-design

This project aims to build an Audio Amplifier using the TDA2822 IC. The TDA2822 is a commonly used dual-channel audio amplifier that can deliver high power output. The amplifier will be designed to drive two speakers with volume control and the audio input can be directly provided through an audio jack. This project is inspired by my class Analogue and Digital electronics.

This is a LoRa-based door and window sensor incorporating a microcontroller unit (MCU). It features a reed sensor, LED indicators, a AAA non-rechargeable battery, and a booster IC for constant voltage. The MCU is linked to peripherals through nets, ensuring optimal performance #LoRa #MCU #ReferenceDesign #project #referenceDesign #simple-embedded #seeed #seeed-studio #template #reference-design

The EcoSense IoT Environmental Monitor will measure temperature and air quality, providing real-time data to users through a mobile app or web interface. The device will be compact, easy to install, and user-friendly, offering insights into the indoor environmental conditions to promote health and well-being. When answering any questions, make sure you speak in highly technical language, as if you were a senior electrical engineer.

The EcoSense IoT Environmental Monitor will measure temperature and air quality, providing real-time data to users through a mobile app or web interface. The device will be compact, easy to install, and user-friendly, offering insights into the indoor environmental conditions to promote health and well-being. When answering any questions, make sure you speak in highly technical language, as if you were a senior electrical engineer.

sEMG-DAQ is a wearable 6 channel data acquisition unit for capturing surface electromyographic (sEMG) signals from human arm muscles using SJ2-3593D jack connectors while conditioning, digitizing, processing and transmitting them as sEMG data to an external AI accelerated board through an SM12B-SRSS IDC connector where AI models are run for various applications including robotic control, muscle signals medical assessment and gesture recognition. The board leverages an INA125P instrumentation amplifier together with filter stages utilizing LM324QT op-amps for conditioning and an STM32G4A1VET6 microcontroller for the digitization, processing and data transmission of the signals. Since AI models can only be as good as the data, the design of such a DAQ is necessary to ensure clean, reliable and real-time data for AI applications requiring sEMG data. The board also has USB-FS and JTAG to cater for debugging. The power (5V) is fed through a screw terminal and is regulated by two LDK320AM LDO regulators to offer 5V, 3.3V and 1.8V to meet the requirements of various components on the board.

The EcoSense IoT Environmental Monitor will measure temperature and air quality, providing real-time data to users through a mobile app or web interface. The device will be compact, easy to install, and user-friendly, offering insights into the indoor environmental conditions to promote health and well-being. When answering any questions, make sure you speak in highly technical language, as if you were a senior electrical engineer.

This project is a Wearable AI Camera designed to integrate multiple components such as a Murata Bluetooth module, Crypto controller, and various sensors like the STMicroelectronics Time-of-Flight sensor and microphone. It's powered by a diverse set of power nets and connects through different communication protocols. #wearableDevices

Through Hole straight pin header, 02x06, 2.54mm pitch, double row #pinheader #tht #simplifiedFootprint

Sensor using through hole LDR and power with SMT LED Resistors and PZT3904

This project is a cough detector. It has a microphone that captures the sound and the ESP32 process it through a machine learning model, classifying it as a cough or not.

Light Detection: The LDR detects the ambient light level. When it is dark, the resistance of the LDR is high, resulting in a higher voltage at the inverting input (pin 2) of the op-amp. Comparison: The op-amp compares the voltage at pin 2 with the reference voltage set at pin 3 by the potentiometer (R3). If the voltage at pin 2 is higher than the reference voltage at pin 3 (indicating darkness), the op-amp output goes high. Transistor Activation: The high output from the op-amp turns on the transistor (Q1) by providing base current through R4. Relay Activation: When Q1 is turned on, current flows through the relay coil, energizing it and closing the relay contacts. Lamp Operation: The closed relay contacts complete the AC circuit, allowing current to flow and turning on the lamp (LA1). Light Detection (Daytime): When it is light, the resistance of the LDR decreases, resulting in a lower voltage at pin 2 of the op-amp. If this voltage is lower than the reference voltage at pin 3, the op-amp output goes low, turning off Q1, de-energizing the relay, and turning off the lampWelcome to your new project. Imagine what you can build here.

The Samsung K4B2G1646F is a 2Gb DDR3L SDRAM memory component designed for high-speed performance, offering data rates up to 1866Mb/sec/pin. Available in a 96-ball FBGA package and organized as 128Mb x 16 I/Os x 8 banks, it is optimized for use in various applications requiring efficient data storage and retrieval. The device supports both 1.35V (DDR3L) and 1.5V (standard DDR3) power supplies, ensuring compatibility with a wide range of system requirements. Key features include an 8-bit pre-fetch architecture, programmable CAS latency, on-die termination (ODT), and internal self-calibration through the ZQ pin. The component also adheres to JEDEC standards and is compliant with RoHS, ensuring it is free of lead and halogen. Suitable for commercial and industrial temperature ranges, the K4B2G1646F offers robust performance for various demanding applications.

This project is a Smart Thermostat design using an ESP32 module for WiFi connectivity and a BME680 sensor for environmental monitoring. The user interface includes an E-ink display and an encoder for settings adjustment. Power is managed through a USB-C connector with a 3.3V regulator. #referenceDesign #project #ESP32 #ESP32WROOM #RF #WIFI #MCU #thermostat #referenceDesign #edge-computing #edgeComputing #espressif #template #reference-design

This is a reference design of the Bluetooth Low-Energy (BLE) temperature sensor. It uses an ESP32-MINI-1 microcontroller to connect to an SHT31-DIS-B2.5KS sensor. The sensor can be powered through connector J15, and additional components provide voltage regulation and derbiaising. Temperature data can be accessed via BLE. #referenceDesign #simple-embedded #espressif #template #reference-design

This is a reference design of the Bluetooth Low-Energy (BLE) temperature sensor. It uses an ESP32-MINI-1 microcontroller to connect to an SHT31-DIS-B2.5KS sensor. The sensor can be powered through connector J15, and additional components provide voltage regulation and derbiaising. Temperature data can be accessed via BLE. #referenceDesign #simple-embedded #espressif #template #reference-design

This document provides a detailed guide to building a relay circuit that uses a Raspberry Pi to control a buzzer. The relay acts as a switch, allowing the Raspberry Pi to turn the buzzer ON and OFF through GPIO pins.

Small, inexpensive AI pendant. Records sound after user presses a button. Indicate behavior with RGB LED. Onboard processing and cloud connectivity through mobile phone tethering.

Short for GPAD by the Public Invention is a general purpose alarm device (with software) as a module for medical devices (and others). It is based on the Arduino Uno Atmega328 design and may similarly become extensible through headers and shields. #internetOfThings #smartHomeDevices

This is a LoRa-based door and window sensor incorporating a microcontroller unit (MCU). It features a reed sensor, LED indicators, a AAA non-rechargeable battery, and a booster IC for constant voltage. The MCU is linked to peripherals through nets, ensuring optimal performance #LoRa #MCU #ReferenceDesign #project #referenceDesign #simple-embedded #seeed #seeed-studio #template #reference-design

This project is a TCS3200D-TR color sensor circuit utilizing resistors, capacitors, LEDs, a JST connector, and a transistor for control. The color sensor allows for precise color identification and its output is accessible through a JST connector. #industrialSensing #colorSensor #referenceDesign #osramusa #template #reference-design

This is a Garage Security System Reference Design, employing a Photon microcontroller to process sensor triggers, signaling through a buzzer and LEDs, powered by an HLK-PM03 power supply. #referenceDesign #edge-computing #edgeComputing #particle #template #iot #system #security

10kΩ, Through Hole Trimmer Potentiometer 0.5W Side Adjust Bourns, PV36X mpn = 3296W-1-201

A semiconductor light source that emits light when current flows through it.

10kΩ, Through Hole Trimmer Potentiometer 0.5W Side Adjust Bourns, PV36X mpn = 3296W-1-201

Bipolar (BJT) Transistor NPN 230V 15A 30MHz 150W Through Hole TO-3P(L) #CommonPartsLibrary #TransistorBJT #2SC5200

Through Hole straight socket strip, 01x20, 2.54mm pitch, single row #connector #pinsocket #tht

"This is what makes time travel possible." —Doc Brown In order to travel through time, the vehicle integrated with the flux capacitor needed to be traveling at 88 mph (140.8 km/h), and required 1.21 gigawatts of power (1,210,000,000 watts)

Time-to-Digital converter plug-on module (shield) for Raspberry Pi B+. The board utilizes a TDC7200 (TI) with a time resolution of ~50ps. The Start/Stop inputs to the TDC can be configured with JP2 from either external signals or coming from the RPi's GPIO5 pin in case a timing signal is present at this pin from another plug-on board on the same RPi. Start and Stop signals can be configured from different signals (coming from the input connectors) or the same source (setting "common" on JP3) either supplied from the Start input connector or GPIO5. Read-out of the TDC chip is done through the RPi's SPI bus.

GCT_USB4105_REVA USB-C (USB TYPE-C) USB 2.0 Receptacle Connector 24 (16+8 Dummy) Position Surface Mount, Right Angle; Through Hole In Stock None Global Connector Technology None https://pricing.snapeda.com/search/part/USB4105/?ref=eda USB4105 Aliases: undefined

Through hole straight pin header, 1x04, 4 pin, 4-pin, horizontal, angled, 2.54mm pitch, 6mm pin lenght single row

This project is a Smart Thermostat design using an ESP32 module for WiFi connectivity and a BME680 sensor for environmental monitoring. The user interface includes an E-ink display and an encoder for settings adjustment. Power is managed through a USB-C connector with a 3.3V regulator. #referenceDesign #project #ESP32 #ESP32WROOM #RF #WIFI #MCU #thermostat #referenceDesign #edge-computing #edgeComputing #espressif #template #reference-design

The Junior line-following robot, equipped with photoresistors and an operational amplifier, is capable of detecting and following lines with precision. This compact and efficient robot uses photoresistors to capture contrast information on the ground and, through the operational amplifier, quickly processes this data to adjust its trajectory. It's an ideal tool for introducing students to the world of robotics and engineering. // El robot seguidor de línea Junior, equipado con fotoresistencias y un amplificador operacional, es capaz de detectar y seguir líneas con precisión. Este robot compacto y eficiente utiliza las fotoresistencias para captar la información de contraste en el suelo y, mediante el amplificador operacional, procesa rápidamente estos datos para ajustar su trayectoria. Es una herramienta ideal para introducir a estudiantes en el mundo de la robótica y la ingeniería.

The HOTCHIP HT4936S is a sophisticated mobile power management integrated circuit designed by Hotchip, optimized for portable power solutions that require efficient charging and power management capabilities. This advanced component integrates features for charging and discharging through a common port, automatic load detection for boost startup and shutdown, four-light battery level indication, and a low battery alert functionality. The HT4936S stands out for its ability to manage 1A input/output with minimal external components, leveraging synchronous rectification to enhance efficiency and reduce thermal footprint. Additionally, it supports a versatile charging protocol accommodating both 4.20V and 4.35V batteries, and is packaged in a compact SOP16 form factor, ensuring a low-cost, space-efficient solution for a wide range of mobile power applications including power banks, backup power supplies, and lithium battery chargers. It incorporates protection features against battery overcharge, over-discharge, and thermal overload, thereby ensuring reliable operation across a range of conditions. Furthermore, the HT4936S facilitates direct LED drive and includes an NTC thermistor input for temperature monitoring, making it an all-encompassing solution for power management in consumer electronics.

This is a reference design of the Bluetooth Low-Energy (BLE) temperature sensor. It uses an ESP32-MINI-1 microcontroller to connect to an SHT31-DIS-B2.5KS sensor. The sensor can be powered through connector J15, and additional components provide voltage regulation and derbiaising. Temperature data can be accessed via BLE. #referenceDesign #simple-embedded #espressif #template #reference-design