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docs: update boards/V04

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DeionSi 2021-10-12 07:20:57 +00:00 committed by Josh Stewart
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title: V04 Board
description:
published: true
date: 2021-10-11T10:36:44.662Z
date: 2021-10-12T07:20:47.385Z
tags: boards, hardware, v0.4
editor: markdown
dateCreated: 2020-01-06T01:53:44.099Z
@ -188,7 +188,7 @@ You can solder wires directly to the board or use IDC (Insulation Displacement C
| V0.4.4c | Small fixes from the b-version. | Not Required |
| V0.4.4b | A new ground up, all SMD, board design that includes additional onboard drivers and protection circuits. It is electrically and physically compatible with all other v0.4 versions. | Not Required |
| V0.4.4 | Modified for easier automated assembly, including some SMD components and mounting the pressure sensor flat side up. Run/program switch added. Only sold officially as complete boards | Not Required |
| V0.4.3d | Newest THT design. Compared to previous design, TO220 cases now lay flat on the board, power circuit is improved, molex connector has been removed and ULN2003 is added for low current ouputs. | [Download](https://github.com/speeduino/Hardware/blob/main/v0.4/THT/Latest/v0.4.3d%20BOM.xlsx) |
| V0.4.3d | Newest THT design. Compared to previous design, TO220 cases now lay flat on the board, power circuit is improved, molex connector has been removed,ULN2003 is added for low current ouputs and proto area is removed due to space constraints. | [Download](https://github.com/speeduino/Hardware/blob/main/v0.4/THT/Latest/v0.4.3d%20BOM.xlsx) |
| V0.4.3 | Filter capacitors added to both primary and secondary RPM inputs. Voltage clamp added to secondary RPM input. Flex fuel input added to proto area | [Download](https://github.com/speeduino/Hardware/blob/main/v0.4/THT/Prior%20versions/v0.4.3/v0.4.3_bom.xlsx) |
| V0.4.2 | Considerable number of routing improvements. Neater proto area layout. Voltage clamp added to primary RPM input | [Download](https://github.com/speeduino/Hardware/blob/main/v0.4/THT/Prior%20versions/v0.4.2/v0.4.2_bom.xlsx) |
| V0.4.1 | Added Proto area. Replaced diode array with SP721. Added optional high current aux output socket (J5). Diode relocated on power circuit to prevent USB back feeding 5v onto 12v rail when ignition off | Same as v0.4.2 |