• Fridge Door Alarm

    Fridge Door Alarm

    A Fridge door Alarm is a simple PCB project designed to detect & inform the status of any refrigeration unit’s door: whether its open or not. It produces a monotonous beeping noise if the fridge door is left open for too long by an accident. It’s common use is in refrigerators, Temperature Controlled Freezers & beverage coolers.

    jecstronic

    4 years ago

    0 Uses

    1 Comment

    0 Stars


  • Raspberry Pi Pico Sensor HAT

    Raspberry Pi Pico Sensor HAT

    The Pico-Environment-Sensor gives Raspberry Pi Pico the ability to collect environment data like temperature & humidity, air pressure, ambient light #RaspberryPi #Raspberry #Pi #RPi #Pico #template #project #project-template #hat

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    3 years ago

    0 Uses

    1 Comment

    0 Stars


  • KTY81

    KTY81

    KTY81 series silicon temperature sensors

    4 years ago

    0 Uses

    1 Comment

    0 Stars


  • CD4052BE

    CD4052BE

    Texas Instruments presents the CD4051B, CD4052B, and CD4053B series, a family of CMOS single 8-Channel, differential 4-Channel, and triple 2-Channel analog multiplexers or demultiplexers with logic-level conversion. Engineered for precise, reliable control of analog and digital signals, these components are characterized by their wide range of signal handling (3 V to 20 V for digital and up to 20 VP-P for analog signals), low ON resistance (125 Ω typical over 15 VP-P signal input range for VDD - VEE = 18 V), high OFF resistance (+100 pA typical channel leakage at VDD - VEE = 18 V), and minimal quiescent power dissipation (0.2 μW typical at VDD - Vss = VDD - VEE = 10 V). They come equipped with on-chip binary address decoding for easy integration and minimized system logic complexity. Available in a variety of package types, including CDIP, PDIP, SOIC, SOP, and TSSOP, these multiplexers/demultiplexers support a broad spectrum of analog to digital and digital to analog conversion applications, signal gating, factory automation, and other uses where reliable signal handling is crucial. With parametric ratings at 5 V, 10 V, and 15 V, and an operational temperature range of -55°C to 125°C, these components are also 100% tested for quiescent current at 20 V, assuring dependable performance across diverse environmental conditions.

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    4 months ago

    0 Uses

    1 Comment

    0 Stars


  • GnomeControl Colab

    GnomeControl Colab

    Heating element temperature controller with 2S battery support and power meter.

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    3 years ago

    0 Uses

    1 Comment

    0 Stars


  • ESP32 Road Soil Sensor

    ESP32 Road Soil Sensor

    Battery-powered ESP32 prototype for measuring soil/road-surface condition using HX711 load cell, MPU6050 vibration/tilt sensing, and DS18B20 temperature sensing from 18650 battery power.

    12 days ago

    0 Uses

    0 Comments

    0 Stars


  • Smart Pet Collar Sensor Hub 4Xmq

    Smart Pet Collar Sensor Hub 4Xmq

    Battery-powered smart pet collar PCB with ESP32-class wireless MCU, GPS, heart sensing, temperature, motion sensing, microphone, USB programming, and mobile-app data connectivity.

    17 days ago

    0 Uses

    0 Comments

    0 Stars


  • USB-C WiFi BLE Environmental Node

    USB-C WiFi BLE Environmental Node

    Consumer USB-C 5 V powered low-power temperature and humidity sensor node with ESP32-class Wi-Fi/BLE 5.x connectivity, USB-C sink input, protected 5 V power path, and 3.3 V digital sensor subsystem.

    20 days ago

    0 Uses

    0 Comments

    0 Stars


  • ESP32 Heater Controller

    ESP32 Heater Controller

    ESP32-based USB-C powered controller for four 5 V / 1 W heater strips, with PCB-mounted safety and ambient temperature sensing, OLED UI, rotary encoder, RGB status LED, and cost-conscious reliability/protection design.

    24 days ago

    0 Uses

    0 Comments

    0 Stars


  • ESP32-S3 Sensor Motor Carrier

    ESP32-S3 Sensor Motor Carrier

    ESP32-S3 carrier board with USB-C 5V power, BNO085 IMU support, GPS module interface, temperature sensing, and a single brushed DC motor driver carrier interface.

    a month ago

    0 Uses

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  • BQ25606 Charger Reference

    BQ25606 Charger Reference

    Single-cell Li-ion/Li-polymer charger and NVDC power-path reference design based on the TI BQ25606RGER, with input and charge-current programming, battery temperature sensing, and status indication.

    a month ago

    0 Uses

    0 Comments

    0 Stars


  • ESP32-C3 ADS1115 pH ORP Sensor Interface 4412

    ESP32-C3 ADS1115 pH ORP Sensor Interface 4412

    ESP32-C3 battery-powered pH and ORP probe interface using ADS1115 differential ADC, MCP6002 through-hole buffers, DS18B20 temperature compensation, and short net labels for firmware handoff.

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    a month ago

    0 Uses

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  • ESP32 Safety Sensor Hub

    ESP32 Safety Sensor Hub

    ESP32 DevKit V1 sensor hub powered from a 12V barrel jack through an LM2596 5V buck converter, with gas, temperature, flame, thermal camera, OLED, relay outputs, buzzer, and ESP32-CAM connections.

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    a month ago

    0 Uses

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  • Teensy Coffee Machine Controller

    Teensy Coffee Machine Controller

    Teensy 4.1 based coffee machine control board with five 120VAC relay channels, thermocouple and RTD temperature inputs, analog divider inputs, UART breakout, and 5V power input.

    a month ago

    0 Uses

    0 Comments

    0 Stars


  • USB-C ESP32 Environmental Sensor

    USB-C ESP32 Environmental Sensor

    USB-C powered low-power temperature and humidity sensor node using an ESP32 Wi‑Fi/BLE module, digital T/RH sensor, protected 5V input, and 3.3V system rail for consumer environmental monitoring.

    a month ago

    0 Uses

    0 Comments

    0 Stars


  • ESP32-C6 CO2 Sensor

    ESP32-C6 CO2 Sensor

    Battery-powered ESP32-C6 Thread environmental sensor using SCD41 for temperature and CO2, USB-C for charging/data, LiPo power, and a buck-boost 3.3 V rail.

    3 hours ago

    0 Uses

    0 Comments

    0 Stars


  • ESP32 Terrarium Climate Controller

    ESP32 Terrarium Climate Controller

    ESP32-based moss terrarium controller for constant temperature and humidity using 12V TEC/heater/LED/fan/mist drivers, SHT35 sensing, OLED UI, and protected 12V-to-5V-to-3.3V power architecture.

    2 months ago

    0 Uses

    0 Comments

    0 Stars


  • Solar WiFi Weather Station

    Solar WiFi Weather Station

    Solar-powered WiFi home weather station tracking wind speed, wind direction, barometric pressure, temperature, and battery-backed operation.

    a month ago

    0 Uses

    0 Comments

    0 Stars


  • USB-C WiFi BLE T-RH Sensor Node

    USB-C WiFi BLE T-RH Sensor Node

    USB-C powered low-power temperature and humidity sensor node with WiFi, Bluetooth LE, protected 5 V input, and digital environmental sensing.

    2 months ago

    0 Uses

    0 Comments

    0 Stars


  • USB-C WiFi BLE Environmental Sensor Node b4cb

    USB-C WiFi BLE Environmental Sensor Node b4cb

    Low-power consumer temperature and humidity sensor node using USB-C 5 V input, protected power path, ESP32 Wi-Fi/BLE connectivity, and a digital T/RH sensor.

    3 months ago

    0 Uses

    0 Comments

    0 Stars


  • Single-Slot 18650 SOH Analyzer Prototype

    Single-Slot 18650 SOH Analyzer Prototype

    100 mm x 140 mm ESP32-based 18650 battery state-of-health analyzer prototyping board with active MOSFET discharge switching, current/voltage measurement, OLED UI, DS18B20 temperature input, and fan control.

    3 months ago

    0 Uses

    0 Comments

    0 Stars


  • 24V ESP32-C6 Matter Environmental Presence Sensor

    24V ESP32-C6 Matter Environmental Presence Sensor

    24 V DC powered ESP32-C6 Matter/Thread WiFi/BLE environmental presence sensor with USB-C programming, mmWave/PIR motion sensing, temperature, humidity, light and air-quality sensing, plus optional Li-ion battery and solar charging power path.

    3 months ago

    0 Uses

    0 Comments

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  • USB-C WiFi BLE T-RH Sensor Node

    USB-C WiFi BLE T-RH Sensor Node

    Consumer USB-C powered low-power temperature and humidity sensor node with Wi-Fi/BLE connectivity, I2C digital T/RH sensing, and protected 5 V input power management.

    3 months ago

    0 Uses

    0 Comments

    0 Stars


  • USB-C WiFi BLE Environmental Sensor

    USB-C WiFi BLE Environmental Sensor

    USB-C powered WiFi/BLE temperature and humidity sensor node with protected 5V input and 3.3V sensor/MCU rail

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    3 months ago

    0 Uses

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  • NSS Heater — Automatic Normal Saline Solution Warming System

    NSS Heater — Automatic Normal Saline Solution Warming System

    ESP32-based automatic Normal Saline Solution warmer with dual DS18B20 temperature sensing, ILI9341 TFT display, relay-controlled 12V heater output, buzzer/LED alerts, push button input, and segregated high-current PCB layout for thesis prototyping.

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    3 months ago

    0 Uses

    0 Comments

    0 Stars


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