Suan Kian

IMG_4916 (modified)

06 Sep: Low cost DC supply solution, 3.7V 1100mAh Li-Ion Battery (LI-3.7-1100)

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.

IMG_4771 (640x480)

29 Aug: Construct a 8x8x8 LED Cube

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.

Top view of 5V relay

01 Aug: Identify Terminal Pins of A Relay Without Reference to Datasheet

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.

Wireless RFID reader circuit

30 Jul: Wireless RFID Reader Using XBees

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.

XBee_tutorial_flow_diagram (640x477)

26 Jul: Wirelesss Servo Controller Using XBee

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.