RobG 1,892 Posted August 15, 2012 Share Posted August 15, 2012 Store link. PCBs are available on TindieWhile helping spreng37 with his TLC5916 project, I realized that a small board with some shift registers and some LEDs could be very useful, so I made one.The board is 2" x 2"Works with 3 different chips: TPIC6C595, 74HC595, and TLC5916There are 8 3mm LEDs, but 5mm will also fit8 current limiting resistors for 595s, which can be shorted when 5916 is usedResistors on the header can be used to temporarily increase LED currentLEDs have separate supply, but there's Vcc jumperOutputs are available on the header for use with external LEDsPull-up resistors on CLR, OE, and LE (OE and LE can be grounded with jumper)Boards can be daisy chained5916's resistor can be soldered in or on the header pine and bluehash 2 Quote Link to post Share on other sites
spreng37 4 Posted August 16, 2012 Share Posted August 16, 2012 Neat! Quote Link to post Share on other sites
RobG 1,892 Posted August 30, 2012 Author Share Posted August 30, 2012 Almost ready (the chips got delayed, will get them on Tuesday and ship to b# the next day.) The board will be sold as a kit and will cost $10. Quote Link to post Share on other sites
chibiace 46 Posted August 30, 2012 Share Posted August 30, 2012 lol the electrolytic cap is huge, you should throw in some green and yellow leds . mounting holes ftw. Quote Link to post Share on other sites
RobG 1,892 Posted August 30, 2012 Author Share Posted August 30, 2012 The caps included in the kit are almost 50% smaller (10V versus 25V on the test board.) I could include green and yellow there's an interest, but that will add another $1 to the price. Also included in the kit are 11 shorting blocks and 3 sets of current limiting resistors: 820, 910, 1k for the 5916, and eight 82, 120, 150. Quote Link to post Share on other sites
chibiace 46 Posted August 30, 2012 Share Posted August 30, 2012 where you getting your boards made? Quote Link to post Share on other sites
RobG 1,892 Posted August 30, 2012 Author Share Posted August 30, 2012 I use Seeed's Fusion service to make my boards. chibiace and pine 2 Quote Link to post Share on other sites
RobG 1,892 Posted September 13, 2012 Author Share Posted September 13, 2012 A few notes about this kit. 1. NEVER insert more than one chip. Insert only the one you want to work with. 2. CLK and SIN header labels are wrong, SIN is CLK, CLK is SIN :oops: 3. DO NOT use resistor shorting jumpers (SV1) with 74HC595 or TPIC6C595, use only with TLC5916 (constant current driver.) 4. LEDs can be supplied with higher voltage when TPIC6C595 or TLC5916 is used, use VLED pin (J1.) 5. For single supply voltage, short VLED and Vcc pins (J1.) Quote Link to post Share on other sites
RobG 1,892 Posted September 20, 2012 Author Share Posted September 20, 2012 One more thing, looks like PCB fab messed up the mask a little bit. In few places, GND is exposed around pins so use very little solder (and flux) to prevent shorting, especially around current resistors and headers.After soldering all parts, inspect visually and use small resistor to connect VLED and Vcc (just in case.)Power the board w/o any chips, no LED should be on. bluehash 1 Quote Link to post Share on other sites
RobG 1,892 Posted October 9, 2012 Author Share Posted October 9, 2012 In store now. BTW, read my previous post before assembly. Quote Link to post Share on other sites
RobG 1,892 Posted November 2, 2012 Author Share Posted November 2, 2012 Driving LEDs is not the only thing you can use this board for, you can drive 8 servos for example. Quote Link to post Share on other sites
chibiace 46 Posted November 24, 2012 Share Posted November 24, 2012 what resistor values for resistors R9 to R12 Quote Link to post Share on other sites
RobG 1,892 Posted November 25, 2012 Author Share Posted November 25, 2012 C1, C3, C4 - 0.1uF C2 - 22uF-100uF/10V R1-R8 - LED current limiting resistors, 220-330ohm R10-R12 - pull-up resistors, 51kR9 - TLC5916 current resistor, 1k = 18.75mA, 910 = 20mA, 820 = 23mA Quote Link to post Share on other sites
chytech 0 Posted December 27, 2012 Share Posted December 27, 2012 :thumbup: Quote Link to post Share on other sites
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