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STD RGB LED Christmas Tree Controller
License: Public Domain
Mode: Editors' pick
- 1
Update time：
2021-08-22 17:38:01
Creation time：
2019-11-30 01:35:58
Description
**2021-03-24:** Current version of program is available in attachment. Does not support yet buttons to change brightness.
**2021-02-18:** New PCB design, which is aligned with PCB for "Christmas Tree LED Wiring" project. Now headers are used for connectivity.
The lates update is replacing IRF9540 with AO34I9L in tiny SOT23-3 body. I ran a test on a prototype for a few hours with maximum brightness. AO34I9L works just fine, I didn't noticed temperature raise.
This is a second version of Christmas Tree Controller. It is using Arduino Pro Mini and two TLC5940
For LED wiring refer to "Christmas Tree LED Wiring" project, LED v2
Program for Arduino is not finalized yet. I don't even know when I finish it :-D
Design Drawing
schematic diagram
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PCB
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| ID | Name | Designator | Footprint | Quantity |
|---|---|---|---|---|
| 1 | 1k | R12,R13,R14,R15 | AXIAL-0.3 | 4 |
| 2 | LED Anodes | H4,H1 | HDR-5X1/2.54 | 2 |
| 3 | Header-Male-2.54_1x1 | P3,P4,P5,P6,P1,P2 | HDR-1X1/2.54 | 6 |
| 4 | IRF9540NPBF | Q4,Q3,Q2,Q1 | TO-220(TO-220-3) | 4 |
| 5 | 10k | R5,R6,R7,R8 | AXIAL-0.3 | 4 |
| 6 | 2k | R1,R2,R3,R4 | AXIAL-0.3 | 4 |
| 7 | 2k2 | R10,R11 | AXIAL-0.3 | 2 |
| 8 | 10k | R9 | RES-ADJ-TH_RK1631110TT3 | 1 |
| 9 | DC-005-2.5A-2.0 | DC1 | CONN-TH_DC-005-2.5A-2.0 | 1 |
| 10 | 470u | C3 | CAP-D6.3XF2.5 | 1 |
| 11 | ARDUINO_PRO_MINI | U6 | MODIFIED_ARDUINO_PRO_MINI | 1 |
| 12 | 10n | C1,C2 | CAP-TH_L3.0-W2.0-P5.08-D0.7 | 2 |
| 13 | PN2907ABU | U1,U2,U3,U4 | TO-92-3_L5.1-W4.1 MOD | 4 |
| 14 | LED Cathodes | H2,H3 | HDR-16X1/2.54 | 2 |
| 15 | TLC5940NT | U7,U8 | DIP28 | 2 |
| 16 | 4.7u | C4 | CAP-D4.0XF1.5 | 1 |
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