From 8738ef7fdb43f168cb5e5e1e7b83d6cff77df85d Mon Sep 17 00:00:00 2001 From: demik Date: Mon, 21 Mar 2022 22:04:41 +0100 Subject: [PATCH] =?UTF-8?q?added=20info=20about=20BOMs,=20mouser=20basket,?= =?UTF-8?q?=20etc=E2=80=A6?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- pcb/TashTwenty Tiny/ChangeLog.md | 2 ++ pcb/TashTwenty Tiny/README.md | 27 ++++++++++++++++++--------- 2 files changed, 20 insertions(+), 9 deletions(-) create mode 100644 pcb/TashTwenty Tiny/ChangeLog.md diff --git a/pcb/TashTwenty Tiny/ChangeLog.md b/pcb/TashTwenty Tiny/ChangeLog.md new file mode 100644 index 0000000..6eae8f5 --- /dev/null +++ b/pcb/TashTwenty Tiny/ChangeLog.md @@ -0,0 +1,2 @@ +## v1.0 +- Initial public release diff --git a/pcb/TashTwenty Tiny/README.md b/pcb/TashTwenty Tiny/README.md index 44ee476..9f645f4 100644 --- a/pcb/TashTwenty Tiny/README.md +++ b/pcb/TashTwenty Tiny/README.md @@ -4,6 +4,7 @@ This is a dual PCB design, using mostly through hole components (with the exepti This folder contains the source KiKad files for the main board. Please check the DB19_IDC20 subfolder for the DB19 to IDC20 adapter. +## BOM ### BOM (main board) Here is the BOM for the main board. Part number are what was tested on prototypes board but you may find alternatives easily, especially resistors and sockets @@ -22,18 +23,18 @@ Here is the BOM for the main board. Part number are what was tested on prototype | R7, R9, R12, R13, R14 | 10kΩ | 5 | standard 0.25W carbon film resistor | TRU TC-CFR0W4J0103 | | U1 | PIC16F1825 | 1 | PIC 8-bit Microcontroller (DIP-14) | PIC16F1825-I/P | | U2 | 74ACT08 | 1 | Quad TTL 2-Input AND Gate | SN74ACT08N | -| U3 | 3.3V LDO | 1 | | MCP1700-3302E/TO | +| U3 | 3.3V LDO | 1 | 3.3V LDO voltage regulator | MCP1700-3302E/TO | Optional -| Reference(s) | Value | Quantity | Notes | Part number | -|-----------------------|------------|----------|----------------------------------------|---------------------| -| J1 | - | 1 | 1x2 header + jumper or wire | - | -| U1, U2 | socket | 2 | DIP-14 socket | TRU 14-LC-TT | -| Case | ABS | 1 | Instrument Case, ABS 2.6x2.6" | HM 1593K(TBU|GY|BK) | +| Reference(s) | Value | Quantity | Notes | Part number | +|-----------------------|------------|----------|----------------------------------------|-----------------------| +| J1 | - | 1 | 1x2 header + jumper or wire | - | +| U1, U2 | socket | 2 | DIP-14 socket | TRU 14-LC-TT | +| Case | ABS | 1 | Instrument Case, ABS 2.6x2.6" | HM 1593K(TBU\|GY\|BK) | -Using sockets is recommended because it will allow you to reclaim the gates and microcontroler if your board is broken. -J1 is reserver for future use, you may want to use a wire for it. (or a resistor leg) +Using sockets is recommended because it will allow you to reclaim the gates and microcontroler if your board is broken. This will also allow you to upgrade the firmware if a future firmware is released. +J1 is reserved for future use, you may want to use a wire for it. (or a resistor leg) ### BOM (adapter board) @@ -47,6 +48,14 @@ J1 is reserver for future use, you may want to use a wire for it. (or a resistor Here is a mouser link (without the case): - https://www.mouser.fr/ProjectManager/ProjectDetail.aspx?AccessID=6e66469657 -### Building +## PCBs +the PCBs are simple 2 layers boards. The gerbers are avaible in the release section. +Check for the following files: +* TTT_10.zip: main board revision 1.0 +* DB19_IDC20.zip: adapter board revision 1.0 +You should be use any mainstream PCB manufacturer for theses. Nothing special about them. PCB thickness should FR-4 with a 1.6mm thickness +On JLCPCB, select "Specify a location" to the option "Remove Order Number" + +## Building Building is straightworfard. It's recommended to start with the SD Card connector, then components, and headers + sockets last.