OWON B35T+ bluetooth (BLE) multimeter

May 23rd, 2016

In this page you will find updated information about the OWON B35T+ bluetooth (BLE) multimeter.

B35T+

Main Features:

– function as 3 in 1 : datalogger + multimeter + temperature meter
– multi-connection (more than one device) supported via mobile app
– the change trend analysis accessible via special chart mode
– voice warning supported, which assures measurement safety
– smart voice-reading accessible
– 3(5/6)-digit full scale reading, achieving higher measurement accuracy than 3(3/4)-digit counterparts
– smart power-off option extending battery life
– true RMS value available (only in B35T, and D35T)
– offline recording function (only in B35+, and B35T+)
– Bluetooth 2.0 version – supports mobile device with Android 4.0 or above OS
– Bluetooth 4.0 version – supports mobile device with Android 4.3
or above / iOS 7.0 or above OS, and equipped with ble 4.0 module

Product link: OWON B35T+

News:

May 23 2016: the iOS application is being updated and will be available mid June 2016. The current version (0.0.1) available in the AppStore supports the B35T but not the B35T+.

Electronics Component Kit – Mosfet IRF520 N-Channel 100V

April 29th, 2016

The metal–oxide–semiconductor field-effect transistor (MOSFET, MOS-FET, or MOS FET) is a type of transistor used for amplifying or switching electronic signals.

The MOSFET is by far the most common transistor in both digital and analog circuits, though the bipolar junction transistor was at one time much more common.

The main advantage of a MOSFET over a regular transistor is that it requires very little current to turn on (less than 1mA), while delivering a much higher current to a load (10 to 50 times or more).

PACKAGE:
TO-220

IRF520 Pinout

A microcontroller (i.e. Arduino) pin can source or sink only 20mA to 40mA (1 or 2 LEDs). The IRF520 can be used to drive motors and other high current devices.

IRF520 Datasheet

Electronics Component Kit – S8550 PNP bipolar Transistor

April 29th, 2016

The UTC S8550 is a low voltage high current small signal PNP transistor, designed for Class B push-pull audio amplifier and general purpose applications.

PACKAGING
TO-92
Packaging and Pinout

FEATURES

  • Collector current up to 700mA
  • Collector-Emitter voltage up to 20 V
  • Complementary to S8050

S8550 DATASHEET

Electronics Component Kit – S8050 NPN bipolar Transistor

April 29th, 2016

The UTC S8050 is a low voltage high current small signal NPN transistor, designed for Class B push-pull audio amplifier and general purpose applications.

PACKAGING
TO-92
Packaging and Pinout

FEATURES

  • Collector current up to 700mA
  • Collector-Emitter voltage up to 20 V
  • Complementary to S8550

S8050 DATASHEET

Electronics Component Kit – Reed Switch (normally open)

April 29th, 2016

The reed switch is an electrical switch operated by an applied magnetic field. It was invented at Bell Telephone Laboratories in 1936 by W. B. Ellwood. It consists of a pair of contacts on ferrous metal reeds in a hermetically sealed glass envelope. The contacts may be normally open, closing when a magnetic field is present, or normally closed and opening when a magnetic field is applied. The switch may be actuated by a coil, making a reed relay,[1] or by bringing a magnet near to the switch. Once the magnet is pulled away from the switch, the reed switch will go back to its original position.

The reed switch included in the Electronics Component Kit is normally open, closing when a magnetic field is present.

Reed Switch

An example of a reed switch’s application is to detect the opening of a door, when used as a proximity switch for a burglar alarm.

It can be combined with the included round magnet to create open/close switches, revolution counters in bicycle wheels and more.

Source: Wikipedia