Showing 496–510 of 612 results
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
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
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.
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.
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
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.
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.
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.
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.
This ESP8266 Adapter Plate is an Adapter PCB Plate for ESP-07, ESP-08, ESP-12E ESP8266 SMD ESP8266 Module. These SMD ESP8266 modules have an unfriendly pin pitch. But by use of this adapter PCB, you can solder ESP-07, ESP-08 or ESP-12E modules and can use your favorite ESP8266 SMD modules on breadboards or on perforated boards.
DC-DC Step Down Buck Converter Charging Module USB 6-32V 9V 12V 24V to QC3.0 QC2.0 Fast Quick Charger 3V 5V 12V Circuit Board.Support fast charging protocol for BC1.2, iPhone, Samsung agreementfor Qualcomm QC2.O and QC3.O
Battery Pack 12.6v 2550 Mah Lithium Ion Rechargeable 3C 
Battery Pack 6.4v 6000 Mah LIFEPO4 Rechargable For Solar 
