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STD Atlas FLI replacement focuser board
License: Public Domain
Mode: Editors' pick
Cloned from focus copy
- 0
Update time：
2023-10-01 12:59:03
Creation time：
2023-09-15 09:37:10
Description
This project is a replacement board for FLI Atlas focusser for telescopes.
When you order the PCB, do not order the 100µf capacitor (the one there is not the right one), do not order the RST connector nor the attiny. These will have to come separately.
contact me at cyrille.de.brebisson@gmail.com to get the rest of the how to and the SW files...
Design Drawing
schematic diagram
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PCB
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| ID | Name | Designator | Footprint | Quantity | |
|---|---|---|---|---|---|
| 1 | 4.7u | C1 | C_0805_HANDSOLDERING | 1 | |
| 2 | 0.1u | C2 | C_0805_HANDSOLDERING | 1 | |
| 3 | 0.22u | C3 | C0805 | 1 | |
| 4 | 0.1u | C5,C11,C12 | 1206 | 3 | |
| 5 | 100uF | C9 | CAP-TH_BD8.0-P3.50-D0.6-FD | 1 | |
| 6 | EDZVT2R3.6B | D4,D5 | SOD-523_L1.2-W0.8-LS1.6-RD | 2 | |
| 7 | DC-005B-2.5A-2.0 | DC | DC-IN-TH_DC-005-20A-1 | 1 | |
| 8 | HDR-M-2.54_1x4 | MOT | HDR-M-2.54_1X4 | 1 | |
| 9 | 7805(SOT-89) | PWR | SOT-89-3_L4.5-W2.5-P1.50-LS4.2-BR | 1 | |
| 10 | 68 | R1 | 0805 | 1 | |
| 11 | 68 | R2 | D_0805 | 1 | |
| 12 | 1k5 | R3 | 0805 | 1 | |
| 13 | 1k | R4 | 0805 | 1 | |
| 14 | 10k | R5,R7 | 0805 | 2 | |
| 15 | 10k | R6 | RES-ADJ-SMD_VG039NCH | 1 | https://lcsc.com/eda_search?q=C128548&%26type=1&ref=editor |
| 16 | 100k | R8 | 0805 | 1 | |
| 17 | 3k9 | R10 | 0805 | 1 | |
| 18 | 0.05 | R11,R12 | R0805 | 2 | |
| 19 | HDR-M-2.54_1x2 | RST | HDR-M-2.54_1X2 | 1 | |
| 20 | ATTINY85-20SU | TINY | SOIC-8_208MIL | 1 | |
| 21 | switch | U1 | R2512 | 1 | https://atta.szlcsc.comnull |
| 22 | A4988SETTR-T | U3 | WQFN-28_L5.0-W5.0-P0.50-BL-EP3.2 | 1 | https://lcsc.com/eda_search?q=C38437&%26type=1&ref=editor |
| 23 | 670688000 | USB2 | USB-B-TH_67068-8000 | 1 | https://lcsc.com/eda_search?q=C114097&%26type=1&ref=editor |
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