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A project log for Remote Control SAO

A badge add-on that's a re-programmable remote for your TV or other IR-controllable device and a I2C-controlled IR blaster.

ben-combeeBen Combee 09/17/2024 at 20:430 Comments

Board order was sent to JLCPCB on September 11th, very early in the morning for me.  I also sent off my order to Digikey for all the parts, and those arrive today.

$21 for five PCBs and stencil shipped, expected to arrive around 9/20.  I'm holding off a larger order until I verify correct operation

From Digikey, where I ordered enough for 25 boards, plus extras where it made sense.

1    CAP1114-1-EZK-CT-ND    CAP1114-1-EZK-TR    IC TOUCH SENSOR/LED DRVR 32VQFN        25    0    $1.43000    $35.75
2    ATTINY1614-SSNRCT-ND    ATTINY1614-SSNR    IC MCU 8BIT 16KB FLASH 14SOIC        25    0    $0.83000    $20.75
3    3147-B2581IR--20C000172U1930CT-ND    B2581IR--20C000172U1930    3.2(L)X1.6(W)X2.55(H) MM        50    0    $0.20000    $10.00
4    1276-1097-1-ND    CL31B105KAHNNNE    CAP CER 1UF 25V X7R 1206        200    0    $0.04200    $8.40
5    RMCF1206FT75R0CT-ND    RMCF1206FT75R0    RES 75 OHM 1% 1/4W 1206        500    0    $0.00876    $4.38
6    RMCF1206FT43R0CT-ND    RMCF1206FT43R0    RES 43 OHM 1% 1/4W 1206        500    0    $0.00876    $4.38
7    732-5025-1-ND    155124RS73200    LED RED CLEAR 1204 SMD R/A        50    0    $0.18800    $9.40
8    732-5026-1-ND    155124VS73200    LED GREEN CLEAR 1204 SMD R/A        50    0    $0.18800    $9.40
9    RMCF1206FT10K0CT-ND    RMCF1206FT10K0    RES 10K OHM 1% 1/4W 1206        500    0    $0.00876    $4.38
10    1175-1864-ND    3020-06-0300-00    CONN HEADER SMD 6POS 2.54MM        25    0    $0.50700    $12.68
                            Subtotal    $119.52

and from Amazon, about $150 worth of upgrades to my electronics workbench, including a bench power supply, a reflow hot plate, new iron tips for my Pinecil, SMD-ready solder paste, various kinds of flux, and a few other items.  I should be able to leverage all that on other projects, of course.

I could definitely save some money on the BOM ordering connectors and LEDs from AliExpress or LCSC, but decided I didn't want to wait for multiple shipments from China.  I probably can use a cheaper ATTiny part too, but they're footprint compatible and wanted to get the larger flash space while developing.

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