I am new to your site

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I graduated in 1996 with my B.EE. I went in the direction of network engineering and cyber security. A few years ago I saw an Arduino Starter kit on Facebook 65% off. I bought it. Since then, I have expanded to 9 Arduino devices and now a Raspberry Pi 8GB 64-bit. With the year of working from home, I started relearning my EE. I am amazing how everything has changed since I was in school. I hated doing assembler for micro controllers back then.

I am going to pick up a 30V 10A power supply and a Rigol DA1054Z scope soon for Op-Amps. I am still going through your site like a kid in a candy store.

I bought resistor arrays, shift registers, etc and started building more complex projects. This week I ordered your Capacitor Kit and A-D 16 channel Mux. I picked up from Digikey 220 ohm and 330 ohm resistor arrays and 10000uF capacitors to top off your kit.

I have the Arduino 37 sensor kit. I used SN74HC165 and SN74HC595 shift registers to connect 16 dip switching to 16 LEDs. I cascaded four SN74HC595 shift registers to 32 LEDs. I want to connect multiple sensors to the A-D Mux like photoresistors and take the shift registers for the digital sensors in the kit back to the Arduino. Would the SN74HC165 shift register allow me to connect multiple digital sensors and read the data back to the Arduino or is their a better method of doing it? I have been searching Bing and can’t find a better way. I hate having 10+ wires on the Arduinos. I have the I2C bus connected and considered getting a component to go standard sensor to I2C.

https://wp.scsiraidguru.com is my tech site. I am working on https://mc.scsiraidguru.com to move my Micro Controller stuff over. Need to fix the cert tonight.

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Greetings, glad to see you are making a comeback!

If limiting wires is the end result you could try this product out: https://www.sparkfun.com/products/13601

For similar discussions on using multiple analog and digital sensors using multiplexors and shift registers maybe check this forum topic out here: https://www.electronicspoint.com/forums … 491/page-2

It may or may not be relevant in the end but is a good read.

Hope this helps!

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Thanks

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SparkFun 16 Output I/O Expander Breakout - SX1509

WOW! Just what I was looking for. I have 37 sensors most of them are digital. I have a few I2C LCD screens. If I could connect 16 of the sensors to this IC and get the readings on the I2C bus, that would be perfect. Two of them could do 32 sensors. I did find the 8 channel I2C Mux for 8 I2C devices with same address. I was wondering about a chip to convert standard digital to I2C.

I did get your 16 channel A-D Mux for Analog sensors. Do they make a A-D to I2C sensor?

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https://www.instructables.com/PCF8574-G … d-NodeMCU/

I found this to.

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Checkout [DEV-15334 for a 4 channel I2C ADC. :-)](SparkFun Qwiic 12 Bit ADC - 4 Channel (ADS1015) - DEV-15334 - SparkFun Electronics)

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So many I2C devices use the same 20-27 address range. It is good to see this component uses (0x48, 0x49, 0x4A, 0x4B).

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I have been looking at all the Mosfets and Op-amps available on your site. So I need to get the Oscilloscope first. I am done to Siglent SDS-1104X-U $399 or Rigol DS1054S for $419. Siglent seems to have a better screen size available. I know I can hack the Rigol up to 100 Mhz. What do you think?