USB to 2.1mm DC Booster Cable - 9V
This cable is kinda fascinating - it has an integrated boost converter, so you can plug it into any USB port (from a computer, battery pack, etc) and it will give you a higher DC voltage! It's a handy way to power 9V powered devices with a center-positive 2.1mm DC barrel jack…
Pinout
- USB 5V input
USB plug input; Adafruit states the booster cable is powered from a USB port or USB battery pack and measurements use a steady 5V input supply.
Type · powerVoltage · 5V input - DC barrel centre pincentre contact
2.1mm centre-positive DC barrel output for powering 9V devices; Adafruit states the cable powers centre-positive 2.1mm DC barrel jack devices.
Type · powerVoltage · 9V output, rated 500mA by Adafruit - DC barrel sleeveouter sleeve
Return/ground for the 2.1mm DC barrel output, paired with the centre-positive barrel plug.
Type · groundVoltage · 0V return
| Pin | Position | Type | Function | Voltage |
|---|
Start wiring
5V input · 9V output, rated 500mA by Adafruit
Verify supply voltage and logic levels before powering up.
Module pins: USB 5V input, DC barrel centre pin, DC barrel sleeve. Schematik maps them to your board in the app.
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