Wednesday, May 28, 2014

PROJEK ELEKTRONIK: AC POWER CONTROL (Phase Angle Control using triac/PIC16F877A)

PROJEK ELEKTRONIK



AC POWER CONTROL

Litar diatas digunakan untuk mengawal kecerahan lampu atau speed ac motor dengan mengawal phase angle dalam degree dengan paparan pada LCD. Selain single phase kita juga boleh menggabungkan litar tersebut untuk kawalan 3 fasa.





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PROJEK ELEKTRONIK: PCB INDUCTIVE/CAPACITIVE, LC METER

PROJEK ELEKTRONIK



Suatu alatan ujian komponen inductive dan capacitive yang sangat berguna didalam kerja-kerja merekabentuk dan membaiki litar-litar elektronik.

Measuring range is from 0 to >0.1uF for capacitance and 0 to >10mH for inductance.
Harga lihat <kedai-letronik>




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Sunday, May 18, 2014

PROJEK ELEKTRONIK: 7 DAY 24 HOURS ELECTRONIC LCD DIGITAL TIMER MODULE

PROJEK ELEKTRONIK


Timer module circuit board ini sesuai untuk kegunaan projek-projek elektronik/microcontroller yang menggunakan bekalan kuasa 5VDC.



7 Day timer module ini dibuat khas untuk kegunaan projek-projek elektronik samada menggunakan microcontroller atau litar-litar logik ic dimana banyak menggunakan bekalan kuasa 5VDC atau 12VDC. Terdapat dua keluaran (output) iaitu terminal relay dan logik output. Dimana relay output boleh dibuat penyambungan terus kepada litar-litar atau menggunakan logic output yang boleh disambungkan terus ke punca input pada pic microcontroller contohnya. Sangat sesuai untuk projek-projek elektronik yang menggunakan timer seperti fish auto feeder, penyiram air tanaman, kipas automatik, litar kawalan didalam kereta, smart-home system, dan sebagainya. Dengan timer ini kita boleh kawal peralatan mengikut mode minit, jam, hari, minggu, bulan, random dan sebagainya.Terdapat dua jenis rekabentuk timer module iaitu jenis 5VDC dan 12VDC boleh digunakan mengikut kesesuaian pengguna. 






Features: 

• 24 hour 7 Day Digital Timer
• Available in 1,2 or 3 pack
• 8 operation buttons
• 10  ON/OFF programs with 1 minute step
• Selectable manual/on/auto/off modes
• 12/24 hour mode selectable
• Large LCD display
• Clock showing seconds
• Summer time function available
• Random function with a random advance of 10-31 minutes between 6:00 PM and 6:00 AM
• Memory back-up battery
• Easy to use 
• 16 combinations of day or blocks of days available as follows: 

Monday / Tuesday / Wednesday / Thursday / Friday / Saturday / Sunday 
Mo-Tu-We-Th-Fr-Sa-Su 
Mo-Tu-We-Th-Fr
Sa-Su
Mo-Tu-We-Th-Fr-Sa
Mo-We-Fr
Tu-Th-Sa
Mo-Tu-We
Th-Fr-Sa
Mo-We-Fr-Su

Specifications:  

• Voltage: 5VDC
• Relay output (com, no and nc)
• Logic output (NPN output >connect to an I/O microcontroller or etc.)
• Active low when logic output.
• Minimum setting time: 1 minute
• Operating temperature: -10 to +40 degrees Celsius
• Accuracy: +/- 2 minutes per month
• Internal rechargeable back up battery: NiMH 1.2 V, over 100 hours

Dimensions: 

• 10cm (L) x 8.8cm (W)

HARGA: RM100.00
NOW ! : RM80.00 
Pesan segera: hubungi saya Roslan 019 3430533 



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Thursday, May 15, 2014

PROJEK ELEKTRONIK: LITAR PCB (TRIAC 3 PHASE ELECTRONIC POWER CONTROL)

PROJEK ELEKTRONIK

Bila lukis pcb single layer, memang banyak guna jumper terutama bila kena buat litar kawalan yang berserabut, tapi jumper pun komponen elektronik juga kan...
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PROJEK ELEKTRONIK: PROJEK SENSOR PENGESAN 3 PARAS DUSTBIN

PROJEK ELEKTRONIK



Ada 3 sensor masing-masing mengesan 3 level sampah dan akan menyalakan lampu sebagai indicator apabila sebarang objek sampah dikesan sensor lebih dari 2 atau 3 saat (delay time). Ini bertujuan membezakan sampah masuk atau sampah sampai level limit.


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PROJEK ELEKTRONIK: PROJEK 4 LEVEL WATER TANK GSM

PROJEK ELEKTRONIK

Litar dibawah menunjukkan 4 sensor dipasang kedalam water tank dan LCD akan memaparkan keadaan paras air, contoh over flow, high, low, critical, empty tank dan terus hantar sms kepada mobile phone anda.


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Monday, May 12, 2014

PROJEK ELEKTRONIK: 3 DIGIT DIGITAL 7 SEGMENT TEMPERATURE DISPLAY

PROJEK ELEKTRONIK


3 digit 7 segment temperature display.



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PROJEK ELEKTRONIK: 3 DIGIT 7 SEGMENT UP DOWN COUNTER

PROJEK ELEKTRONIK


3 dig 7 segment up down counter pic16f877a circuit


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