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partslist.txt
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partslist.txt
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----- Partslist ----
AQW210 Photo MOS Relay *6
AQW212 Photo MOS Relay *2
LM555 Timer IC *4
ATMega 328P *1
Crystal 16MHz *1
22 pF Capacitor *2
2MΩ Variable Resistor *4
1mH Inductor *4 (100mA recommended)
1uF 100V~ Capacitor *4
CMF-RL50A-0 Fuse/Polyswitch *4 (or an alternative that restricts the output current at 50--100mA maximum)
51Ω Resistor *5
100Ω Resistor *4
330Ω Resistor *4
1kΩ Resistor *4
10kΩ Resistor *12
100kΩ Resistor *4
Switching Diode *4 (1N4148, but not limited to it)
2N5551 Transistor *4 (be careful of the type of transistor, which can be CBE [TO-92(1)] for v3.2.2 board, and EBC [TO-92(3)] for v3.3.3 board)
2SC1815 Transistor *1
0.01uF Capacitor *8
0.1uF 100V~ Capacitor *4
0.1uF Capacitor *1
10uF Capacitor *2
Pin Sockets *12
MKDS terminal block, 4 pins *2
MJ-352W-0 Audio Jacks *4
XH Connector *1
SPDT Switches *6
1608 LEDs *3
Other Resistors for Current Limitations of LEDs/Transistors/Relays
Other pin sockets and pin headers for connecting multiple boards
Notes: Resistors and capacitors without any notes can be filled with typical ones, e.g., 1/8W, 50V.
---- Correspondences ----
C6,C22: 22pF
C21,C24: 10uF
C1,C2,C7,C9: 1uF (100V~)
C4,C5,C8,C10: 0.1uF (100V~)
C11,C12,C13,C14,C15,C16,C17,C18: 0.01uF
R10,R12,R14,R16: 100kΩ
R9,R11,R13,R15: 1kΩ
R38: 10kΩ
R48: 5.1kΩ
R17,R18,R19,R20: 330Ω (for 212 input)
R27,R28,R29,R30: 100Ω (for 210*2 input)
R31,R32,R37,R39: 10kΩ pull down
R33,R34,R35,R36: 51Ω ? (for 5551 base) (currently testing with 10Ω)
R42,R43,R44,R45: 0Ω/jumpers
R40: 51Ω (for 210*4 input)
R25,R26,R49: depends on the used LED, e.g., R25 1.5kΩ, R26 500Ω, R49 1.5kΩ with SML-310DTT86 (LED1/2), SML-512MWT86 (LED3)
Note that you must change R26 if you use a different battery source, i.e., if not 3V. I am currently using 2.2kΩ and 560Ω.
R1,R2,R3,R4,R5,R6,R7,R8,R41: 10kΩ (can be left unused, they are pull-down resistors but Arduino has pull-down elements in itself)
R46: 100kΩ (same as above)
R21,R22,R23,R24 should left open/unused.
JP1,JP6,CN2 are sockets or pins which are used to connect with the Arduino.
JP2--JP5 are usually unused. You can use them to connect multiple boards, when using 5 or more channels.
---- Remarks ----
CN6 is an optional socket for battery connection. You can use this for Li-po batteries etc. Be careful not to use them simultaneously with other Vin sockets.
If you find the output stimulation too weak, you may change the inductor or power source (battery, 3.7V or 4.5V maybe). For the inductor, consider using inductors with a larger ampacity (e.g., 200mA~).