Hi all,
I've finished the PCB layout if anyone's interested and added the parts list too.
I've added each component's complete silkscreen info, along with what I think is the corresponding part / code where applicable. If anyone has time to sanity-check it then that would be great!
Ta!
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Q1, Q2: J1 5 - BSS138 n-channel mosfet
Q3, Q4, Q5: P3 L44 - BAT54S Schottky diode
D1, D2, D3: N7 A2 - 1N4148WS diode
R1, R4: 1004 - 1M ohm resistor
R2, R3: 000 - 0 ohm resistor
R5: 2702 - 27K ohm resistor
U1: 16 AJ LM 555 CM - 555 timer
U2: 21 AG LMC 7660 - switching voltage regulator
C1, C3, C4: 10nf - ceramic
C2, C5: 10uf 16v - electrolytic
Plus a small solar panel, LED, and 3.7v rechargeable battery.
NB Q3, Q4, Q5, and U2 have floating / unconnected pins.