Over-air telemetry for model rockets
… 3, 2, 1, Takeoff!
Materials
Gerber file
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Component list
Resistors
R1,R2,R3,R6,R11,R12,R13,R16,R17 = 10k
R4,R5,R8 = 3k3
R9 = 2k2
R7,R10 = 12k
R14 = 1k preset
R15 = 220?
Capacitors
C1,C2,C5,C13,C18 = 22µF 16V radial
C3,C4,C6,C7-C12,C16,C17,C19 = 100nF
C14,C15 = 18pF
Semiconductors
D1,D2 = 11DQ03
IC1 = MAX761
IC2,IC4 = MAX883
IC3 = PICAXE-18X
IC5 = FX614
T1 = BC557
T2,T3 = BC547
Miscellaneous
K1,K2 = 2-way PCB terminal block (e.g. Phoenix Contact # 1725656)
K3 = 14-way boxheader
K4 = RCA connector
K5 = SMA connector
K6 = 9-way sub-D connector, female, PCB mount
L1 = 22 µH
MOD1 = AWM630-TX (Low Power Radio Solutions)
X1 = 3.579MHz (3.58MHz) quartz crystal
PCB, ref. 050238-1
RECEIVER
Resistors
R1,R2,R5 = 10k
R3,R4 = 100k
Capacitors
C1 = 22µF 16V radial
C2,C3,C6,C7,C8,C11-C14,C16 = 100nF
C4,C5,C9,C15 = 10µF 16V radial
C10 = 470µF 16V radial
Semiconductors
D1 = 11DQ03
D2,D3 = 1N4148
IC1 = MAX883
IC2 = MAX232 (DIP case)
IC3 = FX614
Miscellaneous
K1 = 2-way PCB terminal block (e.g. Phoenix Contact 1725656)
K2,K9,K10 = RCA jack, PCB mount
K3 = SMA connector
K4 = 9-way sub-D connector, female, PCB mount
K5,K6,K8 = 2-way pinheader
K7 = 3-way pinheader
MOD1 = AWM634-RX (Low Power Radio Solutions)
X1 = 3.579MHz (3.58MHz) quartz crystal
PCB, ref. 050238-2
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