From 8d50eced23444da3b73fa39ec985b41d13438da2 Mon Sep 17 00:00:00 2001 From: Marc Poulhiès Date: Wed, 11 Nov 2020 21:17:54 +0100 Subject: Update BOM with correct parts, vendor and price. --- README.md | 46 ++++++++++++++++++++++++++++------------------ 1 file changed, 28 insertions(+), 18 deletions(-) diff --git a/README.md b/README.md index 8be5c57..4b1dcf8 100644 --- a/README.md +++ b/README.md @@ -55,7 +55,9 @@ Half of the parts have been soldered with a soldering iron (TS80P), the other half with hot air station. Clearly, with my [un]existing soldering skills, the hot air is a huge win. But I think I would have simply spent more time by only using the iron. Even the small sod-323 diodes without the `_handsoldering` pads -(mistake) were not a real problem (tricky, but even I could do it). +(mistake) were not a real problem (tricky, but even I could do it). For +reference, I have soldered all SMD components for the second board under 2 hours +with hot air. ![Diodes soldering](images/closeup-diodes.jpg) @@ -87,23 +89,31 @@ layout](http://www.keyboard-layout-editor.com/##@_pcb:true;&@_c=#cf94ff&sm=cherr |Item |Package|Qty|Remarks |Price | |--------------------------------------------------------------------------|-------|--:|---------------------------------------|-----:| -| PCB | | 3 | [aisler](https://aisler.net/p/BWUOMHHS) | 86.40€ | -| 100 nF | 0805 | 5 | magic match aisler | 0 | -| PRTR5V0U2X,215 | sot-143| 1 | | 0.43€ | -| 4.7 uF | 0805 | 2 | | 0 | -| 470 Ohm | 0805 | 1 | magic match aisler | 0 | -| TLV70233DBVR | sot-23| 1 | magic match aisler | 0.37€ | -| 74LVC1G34GW,125 | | 1 | magic match aisler | 0.28€ | -| 0805L050WR (500mA Polyfuse) | 0805 | 1 | magic match aisler | 1.91€ | -| RS282G05A3SMRT (micro switch) | | 2 | magic match aisler | 1.26€ | -| 100nF | 0805 | 2 | magic match aisler | 0 | -| 5.1 kOhm | 0805 | 3 | magic match aisler | 0 | -| 0805L050WR (500mA Polyfuse) | 0805 | 1 | magic match aisler | 0 | -| 1N4148WS-7-F | sod-323 | 60| | | -| [WS2812B](https://www.aliexpress.com/item/4000750610574.html?spm=a2g0s.9042311.0.0.27424c4dS3DGkH) | | 10| | 1€ | -| [USB TypeC HRO Receptacle](https://www.aliexpress.com/item/33056042016.html?spm=a2g0s.9042311.0.0.1d8b4c4d8WcR7j) | | 1 | | | -| Gateron Switch | | 60| | | -| Keycaps | | 60| | | +| PCB | | 1 | [aisler](https://aisler.net/p/BWUOMHHS) (by 3 mini) | 28.80€ | +| 100 nF | 0805 | 5 | aisler* | 0€ | +| PRTR5V0U2X,215 | sot-143| 1 | aisler* | 0.43€ | +| 4.7 uF | 0805 | 2 | aisler* | 0€ | +| 470 Ohm | 0805 | 1 | aisler* | 0€ | +| TLV70233DBVR | sot-23| 1 | aisler* | 0.37€ | +| 74LVC1G34GW,125 | | 1 | aisler* | 0.28€ | +| 0805L050WR (500mA Polyfuse) | 0805 | 1 | aisler* | 1.91€ | +| RS282G05A3SMRT (micro switch) | | 2 | aisler* | 1.26€ | +| 100nF | 0805 | 2 | aisler* | 0€ | +| 5.1 kOhm | 0805 | 3 | aisler* | 0€ | +| 0805L050WR (500mA Polyfuse) | 0805 | 1 | aisler* | 0€ | +| [1N4148WS-7-F](https://fr.rs-online.com/web/p/diodes-de-commutation/7384737/) | sod-323 | 60| rs-online (by 200) | 3.24€ | +| [WS2812B](https://www.aliexpress.com/item/4000750610574.html?spm=a2g0s.9042311.0.0.27424c4dS3DGkH) | | 10| | 1€ | +| [USB TypeC HRO Receptacle](https://www.aliexpress.com/item/33056042016.html?spm=a2g0s.9042311.0.0.1d8b4c4d8WcR7j) | | 1 | by 10 mini | 0.25€ | +| [Gateron Switch 5-pin](https://fr.aliexpress.com/item/32797603005.html?spm=a2g0s.9042311.0.0.72906c37zAMdzk) | | 60| by 65 | 15.24€ | +| [Blank DSA Keycaps](https://fr.aliexpress.com/item/32850729893.html?spm=a2g0s.9042311.0.0.3c4b6c37vkQ3vr) | | 60| by 200 | 15.6€ | +| [STM32F072CBT6](https://fr.aliexpress.com/item/4000419148272.html?spm=a2g0s.9042311.0.0.43286c37wfyZHW) | LQFP48 | 1 | | 2.87€ | + +The total for 3 keyboard is 71.25€. Beware that some parts can't be ordered for +the exact amount and you need to buy more (in particular, aisler won't do +anything under 3 units, so you need to spend at least ~90€ for 3 PCBs). + +*: Bought using magic match from Aisler. Some components are then + «free» (resistor, capacitor) and some are not. ## Compiling and flashing -- cgit v1.2.3