Electronic LED Candle
You can blow it out!
Materials
Gerber file
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Extra info / Update
Technical specifications
* Realistic flame simulation
* Blows out
* Lights via a touch pad
* PIC16F1827 programmed in C, source code provided
* Puff detector based on an NTC thermistor
* Constructional difficulty: average
Component list
R1 = 100Ohm
R2 = NTC, 220 Ohm, Epcos B57311V2221J60 (e.g. Farnell # 129-9912 or RS Components # 706-2702)
R3, R4 = 10kOhm
Capacitors
C1 = 33?F 10V aluminum electrolytic, case C, e.g. Panasonic EEE1AA330SR
C2 = 100nF, SMD 0603
Semiconductors
IC1 = PIC16F1827–I/SS (SSOP20), Microchip
IC2 = CAT4016Y-T2 (TSSOP24), ON Semiconductor
D4 à D11, D15 = LED, yellow, low current, SMD 0805, e.g. Kingbright KP-2012SYCK
D1, D2, D3, D12, D14, D16 = LED, orange, low current, SMD 0805, e.g. Kingbright KPHCM-2012SECK
D13 = LED, red, low current, SMD 0805, e.g. Kingbright KPHCM-2012SURCK
Miscellaneous
K1 = 6-pin pinheader, lead pitch 0.1 inch (2.54 mm)
K2 = 4-pin pinheader, lead pitch 0.1 inch (2.54 mm)
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