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"In telecommunications
0 full/low-speed
The 4 wires are labeled as such: Red for Power
The PCB control board must be kept dry and protected inside an enclosure
allowing only the necessary current to flow through and sustain the circuit
Terminal Block 3-Pin 3.5mm Pack of 5 - PCB Mount sd card "In telecommunicationsNothing makes a project harder to maintain than a lot of loose wiring. That's why we like to use terminal blocks whenever making PCB to Wire connections. These particular 3. 5mm terminal blocks are our favorite: big enough for a range of wire gauges, easy to adjust with a screwdriver, and not too chunky. The only down side is that they do not fit into 2. 5mm spaced holes (they're 3. 5mm spaced) but they do fit in most perf proto board if you rotate
