What's in today's postbag?
PCB:: Quad Shift Register Breakout Board / 74HC595 / Microcontollers / etc. http://www.ebay.co.uk/itm/-/261634186903
New 2-wire DC 3.5-30V LCD Digital Blue Volt Panel Meter Voltmeter Monitor New http://www.ebay.co.uk/itm/-/371083741397
24V 25.6V 30A LiFePo4 Battery BMS LFP PCM SMT System 8S 3.2V eBike Battery 8x 3V http://www.ebay.co.uk/itm/-/321048900157
http://www.eclipsebikes.com/battery-cells-battery-packs-cells-accessories-c-77_69.html
EC Technology® 36W 7.2A 5-port Smart Car... Reply w/ #AmazonBasket to add this http://www.amazon.co.uk/dp/B00KIGGMSA/ref=cm_sw_r_tw_dp_01Gzub1DDB62T via @AmazonUK
EC Technology® 6mm Ultra-Slim Qi-Enabled... Reply w/ #AmazonBasket to add this http://www.amazon.co.uk/dp/B00M9TBTDM/ref=cm_sw_r_tw_dp_I2Gzub0D3Y085 via @AmazonUK
PCB:: Quad Shift Register Breakout Board / 74HC595 / Microcontollers / etc. http://www.ebay.co.uk/itm/-/261634186903
New 2-wire DC 3.5-30V LCD Digital Blue Volt Panel Meter Voltmeter Monitor New http://www.ebay.co.uk/itm/-/371083741397
24V 25.6V 30A LiFePo4 Battery BMS LFP PCM SMT System 8S 3.2V eBike Battery 8x 3V http://www.ebay.co.uk/itm/-/321048900157
http://www.eclipsebikes.com/battery-cells-battery-packs-cells-accessories-c-77_69.html
EC Technology® 36W 7.2A 5-port Smart Car... Reply w/ #AmazonBasket to add this http://www.amazon.co.uk/dp/B00KIGGMSA/ref=cm_sw_r_tw_dp_01Gzub1DDB62T via @AmazonUK
EC Technology® 6mm Ultra-Slim Qi-Enabled... Reply w/ #AmazonBasket to add this http://www.amazon.co.uk/dp/B00M9TBTDM/ref=cm_sw_r_tw_dp_I2Gzub0D3Y085 via @AmazonUK
plz think to make Studio Strobe light with using high power LED controld by ardunio trigger. is it possible (high speed sync) now most of them have DSLR camera
online strobe flash lights are highly expencive
that BSM is only designed to keep from over charging and over discharging, it isn't designed to be a cc-cv battery charger
Why not use a PCF8574? It's self-contained I2C to parallel, and hardware I2C can be used to drive it in no time.
The chip can be found using the following on google GL888F 888F2 USB fast charging
your videos are great …but what about order a camera tripod !!!
The post concerning the SP0256 below is by me and NOT Susan Irving. She has signed in on my computer again, without permission and she has been dealt with accordingly.
I designed a PCB to convert the SP0256 AL2 chip to SPI control and had a batch of boards made in China. Still got a few left. I used the 164, not the 595, and an LM386 power amp. I used to salvage the SP0 chips from speech synthesisers for obsolete 8-bit computers like the ZX Spectrum but now they are a bit too expensive to buy for parts. General Instrument, the company responsible for producing the SP0, was bought out by Microchip some time ago and Microchip badged SP0 devices are available. They are being sold on ebay for about £6.50 + £1 p&p from a Hong Kong based seller. Ebay item number is 331208257277 at the time of writing this.
A project kept in the shelve for 25 years! It looks he is describing me also….
Id just use a RC charger / balancer for them LiFe cells , I did with my 12 cell 12Ah pack and never had issues .
Your Videos are always great thanks!! Maybe put the new LCD in a ZIP lock and seal it up except the corner … they have worked very well for me in the past as a temporary solution. 🙂
I don't quite like those 16V capacitors on the 36W USB charger: a car with engine running might provide over 14V on the cigarette plug, and I'm concerned about the life span of the product.
As for the IC on the smart ports, I think I read something about a very similar chip from TI: basically it should be a current-monitoring IC, which can rearrange the voltage on the D+/D- lines until the connected device draws the highest possible current.