Description
Whistle And It Chirps Back At You!
Although birds of all sorts are lovingly owned and watched by many people, sadly most of them have not yet learnt to communicate with us. This all-electronic bird takes a step in the right direction: when you whistle at it, it chirps back!
Features
- Responds to Whistling
- Adjustable Bird Sounds (Tone and Length)
- Elektor Heritage Circuit Symbols
- Tried & Tested by Elektor Labs
- Educational & Geeky Project
- Through-Hole Parts Only
Included
- Printed Circuit Board
- All Components
- Wooden Stand
Bill of Materials
- Resistors
- R1,R2 = 2.2kΩ
- R3,R4,R13 = 47kΩ
- R5 = 4.7kΩ
- R6 = 3.3kΩ
- R7,R10,R11,R12,R17 = 100kΩ
- R8,R19,R23 = 1kΩ
- R9 = 1MΩ
- R14,R15 = 10kΩ
- R16,R18 = 470kΩ
- R20 = 68kΩ
- R21 = 10MΩ
- R22 = 2.7kΩ
- R24 = 22Ω
- P1,P2 = 1MΩ
- P3,P5 = 470kΩ
- P4 = 100kΩ
- Capacitors
- C1,C2,C12 = 100nF
- C3,C4 = 10nF
- C5 = 22μF, 16V
- C6,C7,C11 = 10μF, 16V
- C8 = 2.2μF, 100V
- C9 = 1μF, 50V
- C10 = 2.2nF
- C13 = 10nF
- Semiconductors
- D1,D3,D4,D5,D6,D7,D8 = 1N4148
- D2 = 3V3 zener diode
- T1,T2 = BC557B
- T3 = BC547B
- T4 = BC327-40
- IC1 = TL084CN
- IC2 = 4093
- Miscellaneous
- BT1 = wired battery clip for 6LR61/PP3
- LS1 = miniature loudspeaker, 8Ω, 0.5W
- S1 = switch, slide, SPDT
- MIC1 = electret microphone
- PCB 230153-1 v1.1
