OngoingWISDEC16 with ATmega328P
STDWISDEC16 with ATmega328P
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License
：MIT
Creation time:2017-07-20 18:49:34Update time:2021-07-12 08:11:53
Description
This project uses the AtMega328P-PU as processor. Input is the DCC signal used in model railroading projects.
There are 16 MosFet driven outputs, separated from the AtMega by optocouplers (if you want separation).
A 5V power unit is integrated; it can get it's power from DCC or from a separate power supply.
There are a lot of LEDs in the circuit diagram, but you can leave a lot of them (and the accompanying resistors) out.
Design Drawing
schematic diagram（1 / 5）
Preview
WisDec21Open in Editor
PCB
Preview
New PCB 1 - 55 routing testOpen in Editor
BOM
| ID | Name | Designator | Footprint | Quantity |
|---|---|---|---|---|
| 1 | ATmega328P-AU_WvB | ATM328P | ATMEGAXP-X-32-VIAS | 1 |
| 2 | 100nF 50V | C11,C13 | C0603 | 2 |
| 3 | 100uF 6.3V | C12 | CAP-SMD_L3.5-W2.8 | 1 |
| 4 | 100nF (104) 16V X7R | C14,C15 | C0402 | 2 |
| 5 | SM4007PL | D01,D02,D03,D04,PD1 | SOD-123F_L2.8-W1.8-LS3.7-RD | 5 |
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