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
FEATURES
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.
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
The Electronics Component Kit (ECK) is ideal for electronics beginners looking to experiment with all sorts of components and experienced engineers looking to replenish his/her stock of components.
The kit includes:
| Component | Quantity |
| Plastic Box | 1 |
| Electrolytic Capacitor (4.7uF, 10uF, 47uF, 100uF, 220uF) | 5 pcs each value |
| Jumper Wires, pack of 65 | 1 |
| Breadboard 170 PTS | 2 |
| Speaker 0.5W 8ohms | 1 |
| NPN Bipolar Transistor S8050 | 5 |
| PNP Bipolar Transistor S8550 | 5 |
| NPN Bipolar Transistor S9013 | 5 |
| PNP Bipolar Transistor S9012 | 5 |
| Round Magnet | 1 |
| Ceramic Capacitor 50V (0.01uF, 0.1uF, 1uF, 0.047uF, 0.47uF) | 10 pcs each value |
| Red LED | 5 |
| Yellow LED | 5 |
| Green LED | 5 |
| White LED | 5 |
| White Straw Hat LED | 5 |
| Red Straw Hat LED | 5 |
| Green Straw Hat LED | 5 |
| Blue Straw Hat LED | 5 |
| Diode 1N4148 | 10 |
| Reed Switch | 1 |
| Photo Resistor | 1 |
| Thermistor | 1 |
| Buzzer 5V | 1 |
| 7-segment LED display (Red) – Common Cathode | 1 |
| Potentiometer with knob | 1 |
| Resistor 1/4W 5% (100, 470, 1K, 4.7K, 10K, 20K, 47K, 100K, 200K, 510K, 1M) | 10 pcs each value |
| 74HC595 IC | 1 |
| IRF520N N-Channel MOSFET Transistor | 1 |
| LM386 Audio amplifier IC | 1 |
| NE555 timer | 2 |
| LM741 OPAMP | 1 |
| CD4026 7-segment driver | 1 |
| Microphone | 1 |
| Push Button 50mA | 5 |
| 2032 Battery Holder | 2 |
| Parts List | 1 |
We will be publishing more information about each component and example projects.
Modern microcontroller projects require the use of multiple voltages to combine different parts. It is very common to prototype circuits that require both 5V and 3.3V (i.e. Arduino projects that use sensors or micro controller boards like chipKIT that interface with 5V devices, etc).
We created a breadboard power supply stick that provides both 5V and 3.3V. The voltage selection is user selectable, so you can power both power buses on a breadboard with same 5V, same 3.3V or mix 5V and 3.3V on the different buses.
The product comes fully assembled, except for the male headers that are provided unsoldered. Breadboards are slightly different in size, so doing the final soldering we can assure you have the best fitting product to your specific breadboard. Differences are tiny, but you can find the best fit doing the final soldering.
First, unpack the kit
Start by breaking the male header
Insert 2 2-pin male headers on one of the power bus, then insert 2 other 2-pin male headers on the other power bus.
Insert the power supply stick matching the 8 pins to the 8 power holes and solder
Solder the 2 3-pin voltage selection headers, then place the jumpers based on your voltage needs. Plug a 7 to 12V DC supply to the 2.1mm barrel jack and you will have a working breadboard power supply stick.
SCHEMATICS (click on images to enlarge)
The NKC Electronics XBee Shield V4.0 KIT is an enhanced version of the original Arduino XBee Shield. It is sold in a DIY kit format and it comes with all the components required to assemble a full XBee Shield that is pin-compatible with all Arduino format compliant boards (Arduino, Freeduino, Seeeduino, chipKIT, etc).
V4 includes some new features, like a switch to select XBEE or USB instead of jumpers. This switch, re-routes RX and TX at the same time, so if for some reason, you still need to switch RX to one position and TX to the same position, then solder a 2×3 male header instead of the provided switch, and use jumpers to select the position you need.
First, unpack the kit
and start with the PCB.
Let’s start with the power section and the switches of the schematic using the following parts:
| IC1 | LD1117-33 Voltage Regulator (TO-220 package) |
| C1 | 100nF ceramic capacitor |
| C2 | 10uF electrolytic capacitor |
| reset | tactile switch (4 legs) |
| XBEE/USB | DPDT micro switch (6 pins) |
Next continue with the transistor, LEDs and resistors:
| R1 | 10K resistor  |
| R2 | 15K resistor  |
| R3 | 1K resistor  |
| R4 | 330ohm resistor  |
| R5 | 18ohm resistor  |
| RSSI | 3mm LED yellow |
| ASSOCIATE | 3mm LED blue (transparent) |
| T1 | BC547 transistor |
Solder the sockets and pin headers:
Next step: Insert the jumpers and the board is completely assembled:
There are 2 jumpers. J1 and J2 are for upgrading the firmware on the XBee module. Leave open for normal operation (both J1 and J2 open).
The XBEE/USB switch is used to route the RX and TX signals from the XBEE module to the Arduino board. Select XBEE position if you want to communicate the XBee module with the ATmega chip on the Arduino (or compatible) or PIC on the chipKIT board. Select USB if the board does not have the microcontroller installed and you want to use the USB interface to communicate the PC directly to the XBee board.
And this is the final picture of the XBee Shield V4.0 assembled and ready to use. XBee module is not included in the kit and must be purchased separately.
