DIY USB Line Power Meter Stick




Another DIY project designed with Solo-Lab.com’s SoloPCB Designer tool is ready to be shared with Electro-Labs community. This is an USB stick which measures the supply voltage of the USB port and current drawn by the device connected to the port over the stick. Then it calculates the power consumption of the device and displays the whole information with the help of the small OLED display on the board. The stick itself is also powered from the USB port.

The board is built around an Atmel ATMEGA328 microcontroller. To make the circuit as small as possible, the MCU is used in minimal configuration. Internal 8MHz oscillator is used. The voltage and the current are measured by the internal 10 bit ADC. To make the measurements more accurate, an external 2.5V voltage reference IC, Microchip MCP1525 is included. The current is converted to voltage on a 0.01R sense resistor and precisely amplified by LT6106 before read. The stick can measure up to 2.5A. Since the OLED display requires 3.3V supply voltage, L78L33ACUTR linear voltage regulator is used for 5V to 3.3V conversion.

DIY USB Line Power Meter Stick




Circuit Design

The schematic of the project is drawn in SoloCapture, the schematic editor of SoloPCB Designer. SoloCapture makes the schematic drawing process very easy and fast. You can download SoloPCB Designer tools at Solo-Labs.com for FREE.

You can download the SoloPCB design files of the project by using the link below.

For more Details: DIY USB Line Power Meter Stick




This Post / Project can also be found using search terms:

  • https://yandex ru/clck/jsredir?from=yandex ru;search;web;;&text=&etext=1821 LseNSNFOrpbC52yPfo3beZRKJSnLN7l-XTnlIl-UZHEbcsUni-7TiePBF13Rfh14 2eff0458ab11f1f8fccca02ad1375983feba46c4&uuid=&state=_BLhILn4SxNIvvL0W45KSic66uCIg23qh8iRG98qeIXme
  • https://yandex ru/clck/jsredir?from=yandex ru;search;web;;&text=&etext=1831 5umjGwltHXUFKND42QbdiX14DksHL3oqRxWyyOliq04VVmIUWFzWdg2L2RHbaZsQ a5383f58eb001915d8005de1002e899563f3bd70&uuid=&state=_BLhILn4SxNIvvL0W45KSic66uCIg23qh8iRG98qeIXme
  • https://yandex ru/clck/jsredir?from=yandex ru;search;web;;&text=&etext=1833 h__qBJA4QPgqx1AllUAp7-E6BMc8BEWwJEpYJveLJDC6VYW0_fxuDn_Q9KZr_UG0 ab97e3105c25613acde3695c2d8e66a039464bbe&uuid=&state=_BLhILn4SxNIvvL0W45KSic66uCIg23qh8iRG98qeIXme

Leave a Comment

*
= 5 + 6

(Spamcheck Enabled)

Read previous post:
Keyless piano using Arduino uno
Keyless piano using Arduino uno

Keyless piano using Arduino is sort of sequel to the DIY fun piano i have published in this website. In...

Close
Scroll to top