3.7V 1100m Ah Li-Ion Battery (LI-3.7-1100) is a typical Lithium Ion rechargeable battery in cylindrical shape that offers 1100mAh actual capacity (although it is labelled 3000mAh by the OEM). It is a very low cost DC supply solution (low discharge rate), hence suitable in electronic projects or small mobile robots that do no require high discharge current.
Ever heard of an embedded electronic project called LED cube? Actually, this project had been done by many embedded electronic hobbyists due to its interesting display effects by lighting up LED Cube in certain patterns. The LED Cube lighting patterns can be controlled by microcontroller based on the program loaded into it. In this tutorial, user will be guided to build up a 8x8x8 LED Cube in step by step.
Relays that normally used in electronic circuits are SPDT and DPDT types due to their flexibility in controlling circuit switching. In the next section, a demonstration on identifying the pins of a relay from SPDT or DPDT type without referring to its datasheet will be illustrated. A 5-pins type relay, a 6-pins type relay and an 8-pins type relay will be used in this demonstration.
In this tutorial, a project on creating a wireless RFID reader will be implemented. The model of RFID reader used here is RFID reader 232N (RFID-IDR-232N) which actually can be connected to PC directly through RS232 using the DB9 (Male) of its cable for sending tag’s IDs scanned to computer.Somehow, the establishment of a wireless RFID reader enable the RFID reader to be place a t a further distance from the PC since the cable length constraint is eliminated but still can sends the tag’s IDs scanned to PC through the wireless link.
Ever think to create a wireless servo controller to control movement of servo motor at a distance? If yes, this tutorial is totally applicable to you. In this tutorial, a wireless servo controller circuit will be established and a servo motor will be controlled wirelessly from a computer through a Servo Control Panel GUI provided by Cytron Technologies.
Bluetooth wireless communication is becoming more and more common recently. In response to this trend, Cytron Technologies has came up with a new Bluetooth module called BlueBee, which provides hobbyists a wireless remote control on their microcontroller circuits thus robots through serial port communication service attached with BlueBee. In the section, a simple project will be constructed to illustrate how to use BlueBee for wireless communication to interface another Cytron product, breadboard friendly Arduino, BBFuino to control LEDs.
BBFuino is a clone of Arduino which is specially designed to fit onto breadboard for prototyping and learning purposes. Like Arduino, it can be used to develop interactive objects like taking inputs from switches or sensors, controlling a variety of light motors and other physical outputs. BBFuino is using Atmel microcontroller Atmega328 loaded with Optiboot bootloader. This feature makes it compatible to Arduino IDE and sample codes provided by Arduino.
Recently, the Arduino main boards with Atmel microcontrollers have its popularity increases due to its easier programming techniques as provided with many useful libraries in which various sub-functions can be called easily. In the next section, we are going to interfacing SC08A and SC16A using one of the most popular Arduino mainboard, Arduino Duemilanove