I’m trying to connect multiple sensors to the Power and I2C pins of the GPIO header of a Pi 3B, but I can’t find an easy way to do it using the standard plug-in jumper cables that are often used for prototyping.
All I could find was these splitters on Amazon, which would allow me to connect two devices, assuming the pins are the right size (as it happens the pins I need are next to each other):
I was hoping for something that could be “stacked”, like these banana plug jumpers but obviously smaller:
It seems to me that I2C is very convenient for connecting multiple sensors, since they can all share the same pins – but it would be a shame if I can’t get this sharing to occur without soldering or introducing a bulky solderless breadboard…
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There are two to eight ways compact, space saving latch lever splitters. I also DIY Tamiya signal/power one male to multiple female connectors. For more than 8 connectors, I usually solder proto board 5 connect strip boards for I2C or SPI signal splitters: imgur.com/gallery/b9Z8ygK. – tlfong01 39 mins ago
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Two more related answers your may find useful. I usually go to Pimoroni for DIY ideas: (1) raspberrypi.stackexchange.com/questions/104705/… (2) raspberrypi.stackexchange.com/questions/104307/…. You may also find in one of my answers about the I2C wiring related, annoying, GROUNDING problem and how to avoid the trouble. – tlfong01 9 mins ago
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This is the thing I refer above: PCT-213 222-413 Spring Lever Push Fit Cable 3 wire Wiring Connector Universal Compact Terminal Block dhgate.com/product/-100-pieces-lot-wago-222-413-pct-213-type/… – tlfong01 16 secs ago Edit
Use a breadboard like the rest of us. They come in many sizes; the smaller breadboards will take up less space, and you are less likely to damage the Pi.
NOTE to use I²C you NEED 3 connections at least and most I²C devices also need a 4th connection for power.
See https://raspberrypi.stackexchange.com/a/79884/8697 but there are hundreds of tutorials.
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