I have had some questions about the possibility to purchase Esparducam boards and also about the bill of material. While I am looking into selling spare boards, here are some instructions about building the boards. Here is the link to order the PCBs [dirtypcbs.com].
If you have never tried building surface mounted boards yourself I highly recommend you try it! I started here [nathan.chantrell.net] and googled my way from there.
Here is the BOM with some eBay links:
C1 1uF capacitor 0603
C2 0.1uF capacitor 0603
C3 1uF capacitor 0603
C4 10uF capacitor 0603
C6 0.1uF capacitor 0603
J1 6 pin 2.54mm male header (angle) [eBay]
JP1 8 pin 2.54mm female header (for the Arducam Mini) [eBay]
JP9 Power jack 5.5×2.1mm [eBay]
R1 4k7 0603
R2 4k7 0603
R3 4k7 0603
R4 4k7 0603
S1,S2 Momentary switch [eBay]
U1 NCP1117 (or LM1117) 3.3V regulator [eBay]
X1 ESP-12f
The following parts are optional depending on what you want to do with your board:
Reverse current protection
D1 SOD-123FL, schottky diode for reverse current protection [eBay],
If you feel brave you can bypass the diode by placing a blob of solder across SJ2 on the back of the board.
Adding motion detection
If you want to attach a PIR [eBay] you need:
J2 JST ZH connector, 3 pin [eBay]
R6 220k 0603
R7 100k 0603
R6 and R7 was going to be a voltage divider that I messed up leaving R7 optional. Please note that the PIR does not work at 3.3V. To bypass this without adding a 5V regulator I simply feed the PIR with the raw board voltage which in my case is 5V.
Controlling power to the Arducam Mini
If you want to be able to control the power to the Arducam Mini board you need Q2 and R5. If you feel ok to have power constantly enabled simple place a blob of solder across SJ1 at the back of the board.
Q2 P mosfet, SOT-23 [eBay]
R5 4k7 0605
External flash
The external SPI flash is also optional. Please note that the footprint is somewhat too narrow, some flashes might not fit.
U2 SPI flash SOIC-8
C5 0.1uF 0603
Adding header pins
These optional headers are for attaching add-on boards or pins for taking measurements
JP3, JP6 8 pin 2.54mm male header
JP4,JP5 8 pin 2.54mm female header
That’s it, good luck!