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Showing 496–510 of 615 results
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Developments Boards, Modules & Sensors
DHT22 Temperature and Humidity Sensor
DHT22 capacitive humidity sensing digital temperature and humidity module is one that contains the compound has been calibrated digital signal output of the temperature and humidity sensors. Application of a dedicated digital modules collection technology and the temperature and humidity sensing technology, to ensure that the product has high reliability and excellent long-term stability.
SKU: CE-M009 -
Robots & Kits
Digispark ATTiny85 USB Development Board Digistump
- 100% Brand New and High Build Quality
- The Digispark is an Attiny85 based microcontroller development board similar to the Arduino line, only cheaper, smaller, and a bit less powerful. With a whole host of shields to extend its functionality and the ability to use the familiar Arduino IDE the Digispark is a great way to jump into electronics, or perfect for when an Arduino is too big or too much.
- The Digispark is shipped fully assembled except for the two included and easy to solder headers.
SKU: CE-D003 -
Modules & Sensors
Digital Thermal Sensor Module Temperature Sensor Module
- 100% Brand New and High Quality
- the thermal resistance of the module is very sensitive to the ambient temperature , generally used to detect the ambient temperature ;
- through the adjustment of the potentiometer , can change the temperature detection threshold (ie, temperature control value) if necessary to control the ambient temperature is 50 degrees , the module in the corresponding ambient temperature to which the green light , DO output is HIGH level falls below the set temperature value, the output is high , the green light does not shine ;
- DO output can be directly connected with the microcontroller through the microcontroller to detect high and low , thereby detecting the ambient temperature changes ;
- DO OUR outputs can directly drive the relay module , which can be composed of a thermostat to control the operating temperature of related equipment can also be connected to the fan used to heat and other ;
- the detection range of the module’s temperature 20-80 °C ;
- this module can also be replaced with a wire temperature sensor for water temperature, water tank controlled.
SKU: CE-M041 -
3D Printing, Motor Drives & controllers
DRV8825 Stepper Motor Driver Module for cnc 3d printer
The DRV8825 provides an integrated motor driver solution for printers, scanners, and other automated equipment applications. The device has two H-bridge drivers, and can drive a bipolar stepper motor or two DC motors. The output driver block for each consists of N-channel power MOSFET’s configured as full H-bridges to drive the motor windings. The DRV8825 can supply up to 2.5-A peak or 1.75-A RMS output current (with proper heatsinking at 24 V and 25°C).
A simple step/direction interface allows easy interfacing to controller circuits. Pins allow configuration of the motor in full-step up to 1/32-step modes. Decay mode is programmable. Internal shutdown functions are provided for overcurrent protection, short circuit protection, under-voltage lockout and overtemperature. The DRV8825 is available in a 28-pin HTSSOP package with PowerPAD (Eco-friendly: RoHS & no Sb/Br
SKU: CE-M035 -
Developments Boards, Modules & Sensors
DS18B20 digital temperature sensor probe Direct waterproof
Stainless steel encapsulated waterproof temperature sensor DS18b20 temperature sensor 18B20. Original DS18B20 temperature sensor probe used chips.Encapsulated waterproof high quality stainless steel tube anti-rust. Stainless steel housing (6x50mm), leader length 100cm. After each probe to undergo a rigorous testing packaged individually
SKU: CE-M089 -
Developments Boards, Modules & Sensors
DS3231 Precise Real Time Clock Module I2C RTC AT24C32
DS3231 is a low-cost, extremely accurate I2C real-time clock (RTC), with an integrated temperature-compensated crystal oscillator (TCXO) and crystal.The device incorporates a battery input, disconnect the main power supply and maintains accurate timekeeping.Integrated oscillator improve long-term accuracy of the device and reduces the number of components of the production line.Real time clock generator seconds, minutes, hours, day, date, month and year timing and provide valid until the year 2100 leap year compensationDS3231 available in commercial and industrial temperature ranges, using a 16-pin 300mil SO package.RTC maintains seconds, minutes, hours, day, date, month, and year information. Less than 31 days of the month, the end date will be automatically adjusted, including corrections for leap year.Clock operates in either the 24 hours or band / AM / PM indication of the 12-hour format. Provides two configurable alarm clock and a calendar can be set to a square wave output.
Address and data are transferred serially through an I2C bidirectional bus.A precision temperature-compensated voltage reference and comparator circuit monitors the status of VCC to detect power failure, provide a reset output, and if necessary, automatically switch to the backup power supply.RST pin is monitored as generating μP reset manually.Save time and high precision addition, DS3231 also has some other features that extend the system host of additional features and a range of options.The device integrates a very precise digital temperature sensor, through the I2C * interface to access it (as the same time).Temperature sensor accuracy is ± 3 ° C. On-chip power supply control circuit can automatically detect and manage the main and standby power (i.e., low-voltage battery) to switch between the power supply.If the main power failure, the device can continue to provide accurate timing and temperature, performance is not affected.When the main power re-power or voltage value returns to within the allowable range, the on-chip reset function can be used to restart the system microprocessor.
SKU: CE-M060 -
Developments Boards, Modules & Sensors
ECG AD8232 heart ECG monitoring sensor module
The Ecg module AD8232 heart ECG monitoring sensor module Kit For Arduino is a cost-effective board use to measure the electrical activity of the heart. This electrical activity can be chart as an ECG or Electrocardiogram and output as an analog reading. ECGs can be extremely noisy, the AD8232 Single Lead Heart Rate Monitor acts as an op amp to help obtain a clear signal from the PR and QT Intervals easily.
SKU: CE-M087 -
Circuits Boards & PCB, Home & Audio
Electret Mic Condenser 6mm x 5mm
The condenser microphone, or capacitor microphone or electrostatic microphone is a device which converting from sound energy into electrical energy. It’s working as a parallel plate capacitor and works on the principle of a variable capacitance. It consists of two plates, one fixed (called the back plate) and the other moveable (called Diaphragm) with a small gap between them. An electric potential
SKU: CE-T008 -
Capacitor
Electrolytic capacitors Assorted value Keltron
High purity Etched and Formed Aluminium foil with aluminium oxide dielectric barrier as anode foil and an aluminium cathode foil are concentrically wound with a layer of condenser grade paper in between and after impregnation with electrolyte, the wound element is housed in an Aluminium can and then hermetically sealed using a rubber bung to form an Aluminium electrolytic capacitor. The most important advantage of the electrolytic capacitors are the higher capacitance ratio to dimensions when compared with other capacitors. This is principally due to microscopically thin dielectric layer, which produces large capacitance per unit area. Over the years there have been continuous improvements in the etching technology of anode foil that has resulted in many fold increase in the actual anode surface area resulting in reduction in capacitor size. The oxide dielectric layer has rectifier properties blocking current flow in one direction but offering low resistance in the opposite direction. Reversal of more than two volts will cause breakdown of the film and detruction of the capacitor. So Electrolytic Capacitor for AC applications are specially manufactured and marked Non polar/AC. Others are polar Capacitors and there for limited to DC applications.
SKU: n/a -
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IoT & Wireless
ESP 01 / ESP8266 Programmer CH340G Chip USB WiFi Wireless UART GPIO0
This moduel is an USB adpater / programmer for ESP8266 moduels of type ESP-01. It is conveniently fitted with a 2x4P 2.54mm female header to plug the ESP01 (according to illustration picture 2) and configure or run it right away. A large 1000μF cap will help getting a steady 5.0V VCC from the USb bus and and jumper (on the right of the 2x4P header) will help configuring the GPIO0 line according needs. The module is based on the USB-UART bridget CH340 from WCH which is compatible with all platforms.
SKU: CE-P003 -
IoT & Wireless, Modules & Sensors
esp-01 /Esp 8266 Wireless WIFI to UART Module
ESP8266 is a highly integrated chip designed for the needs of a new connected world. It offers a complete and self-contained Wi-Fi networking solution, allowing it to either host the application or to offload all Wi-Fi networking functions from another application processor. ESP8266 has powerful on-board processing and storage capabilities that allow it to be integrated with the sensors and other application specific devices through its GPIOs with minimal development up-front and minimal loading during runtime. Its high degree of on-chip integration allows for minimal external circuitry, and the entire solution, including front-end module, is designed to occupy minimal PCB area.
SKU: CE-W010 -
IoT & Wireless
ESP-WROOM-32 Espressif WiFi + Bluetooth Module
The ESP8266 started a small revolution by bringing WiFi to a small and cheap package that also had enough processing power and enough pins to get small things done. Now get ready to take your bite-sized WiFi capabilities to the next level with the ESP-WROOM-32 WiFi / Bluetooth Classic / BLE Module!
According to Espressif, the ESP-WROOM-32 is a powerful, generic WiFi-BT-BLE MCU module that targets a wide variety of applications ranging from low-power sensor networks to the most demanding tasks such as voice encoding, music streaming and MP3 decoding.
SKU: CE-W012
