
If you need to connect a DC power wall wart to a board that doesn't have a DC jack - this adapter will come in very handy! There is a 2.1mm DC jack on one end, and a screw terminal block on the other.
Positive screw-terminal output from the 2.1 mm DC barrel jack, for positive-tip DC supplies. Source states the terminal block is labelled positive/negative assuming positive-tip configuration.
Negative screw-terminal output from the 2.1 mm DC barrel jack. Source states the terminal block is labelled positive/negative assuming positive-tip configuration.
| Pin | Position | Type | Function | Voltage |
|---|---|---|---|---|
| + | power | Positive screw-terminal output from the 2.1 mm DC barrel jack, for positive-tip DC supplies. Source states the terminal block is labelled positive/negative assuming positive-tip configuration. | DC input voltage from the connected 2.1 mm positive-tip supply, not specified by Adafruit for this adapter |
SPI · DC input voltage from the connected 2.1 mm positive-tip supply, not specified by Adafruit for this adapter · 0 V / supply return from the connected DC supply
Verify supply voltage and logic levels before powering up.
Module pins: +, -. Schematik maps them to your board in the app.
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| - | ground | Negative screw-terminal output from the 2.1 mm DC barrel jack. Source states the terminal block is labelled positive/negative assuming positive-tip configuration. | 0 V / supply return from the connected DC supply |