Use the USB Charger Doctor to measure the working voltage and current output for any USB port and project. This blue plastic dongle plugs between a USB device and passes the data lines through. There is a 0.05-ohm resistor in line with the power pin that is used to measure current draw.
The Doctors digital display instantly reads the numbers out for testing devices such as chargers, cables, and cell phones.
You can use this device from the 3.5-7VDC input voltage (although most USB devices tend to hover around 4.75 to 5.25) and up to 3A of current. It flips between voltage and current readouts every 3 seconds or so. Its a very handy tool for testing USB devices, checking load levels and debugging battery chargers and boost converters. Its a little chunkier but more numerical thanour USB Power Gauge Mini-Kit. Its also not open source so check out the USB Power Gauge mini kit if you want to hack together your own power gauge indicator.
The Proto Screw Shield is the ultimate breakout board for an Arduino. It combines a prototyping shield with a full set of 3.5 mm screw terminal blocks. The proto shield part lets you build custom circuitry and then you can easily & securely connect wires and sensors to the terminal blocks. Great for panel mounts, buttons, sensors, enclosures etc.
Proto Screw Shield is Pre-Assembled so that it can be directly screwed onto the thread posts. It isreliable and convenient.
The Arduino Proto Screw Shield extends all pins of the Arduino out to 3.5mm pitch screw terminals. It also has a lot of the utility provided by Arduino Protoshield, including a large prototyping space of both connected and unconnected 0.1 spaced through-holes, a reset button, LED for D13 pin indicating.
The convenient solution for the development of new projects requiring Uno and WiFi. Via USB you can update sketches and firmware for ATmega328 and for ESP8266. For this onboard have the USB-serial converter CH340G.
It is a modernized version of the classic UNO R3 board. Full integration of a microcontroller ATmega328 and a Wi-Fi chip ESP8266 with 8 MB memory on one board. All modules can work together or individually. Each of the microcontrollers has led to connecting peripheral sensors and modules.
A convenient solution for developing new projects that require Wi-Fi. Through USB, you can update sketches and firmware for both ATmega328 and ESP8266. For this on board, there is a UART converter CH340G. The board has a DIP switch, which switches the modes of interaction of microcontrollers ATmegaa328 and esp8266.
Operations of this board are very simple. The board has DIP-switch, to connect the modules. For example, to USB and ATmega328, USB and ESP8266, ATmega328 and ESP8266.
The Uno R3 is a open source microcontroller board based on the ATmega328 chip. This Board has 14 digital input/output pins, 6 analog input pins, Onboard 16 MHz ceramic resonator, Port for USB connection, Onboard DC power jack, An ICSP header and a microcontroller reset button. It contains everything needed to support the microcontroller. Using the board is also very easy, simply connect it to a computer with a USB cable or power it with DC adapter or battery to get started.
The Uno differs from all preceding boards in that it does not use the FTDI USB-to-serial driver chip. Instead, it features the Atmega16U2Atmega8U2 up to version R2) programmed as a USB-to-serial converter. While the UNO can be powered via the USB connection or with an external power supply, the power source is selected automatically.
External (non-USB) power can come either from an AC-to-DC adapter (wall-wart) or battery. The adapter can be connected by plugging a 2.1mm center-positive plug into the board’s power jack. Also leads from a battery can be inserted in the Gnd and Vin pin headers of the Power connector. The board can operate on an external supply of 6 to 20 volts. If supplied with less than 7V, however, the 5V pin may supply less than five volts and the board may be unstable. If using more than 12V, the voltage regulator may overheat and damage the board. The recommended range is 5v to 12v for Uno.
Transparent Acrylic Case Enclosure Glossy Box For Mega 2560 R3 is made by high grade acrylic, which provides excellent protection. This is unique design provides easy connection to other components. The dimension of enclosure box is the same as original MEGA2560 R3.
Note : This product only includes the case, there is no Mega2560 R3 board inside of the package
