2 layers57.3 × 19 mm
2 layers45.2 × 21.8 mm
Usb pwrmon
noahp/usb_pwrmon1usbpwrmon ===== Simple usb port current/voltage measurement with display.
- Size
- 45.2 × 21.8 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 26
- Nets
- 28
- Pads
- 120
- Tracks, vias
- 207, 35
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 3
- Created
- 21 Jan 2013
- Updated
- 11 Nov 2015
Overview
Usb pwrmon is an open-source printed circuit board by noahp, from the noahp/usb_pwrmon repository on GitHub. It is a 2-layer board of 45.2 × 21.8 mm with 26 parts on 28 nets, routed with 207 tracks and 35 vias.
Its parts include 9 capacitors, 6 connectors, 5 resistors, 3 ICs and 1 diode. It belongs with the NXP (LPC, Kinetis, i.MX RT) boards of this library.
README
README.mdusb_pwrmon
Simple usb port current/voltage measurement with display.
render
oled breakout
comp info
oled
http://www.aliexpress.com/snapshot/276751791.html http://rusticengineering.com/2010/05/10/oled-0-96-breakout-board-sh1101a-driver/
micro
freescale ksz24/25/26
http://cache.freescale.com/files/32bit/doc/data_sheet/KL02P32M48SF0.pdf
http://cache.freescale.com/files/32bit/doc/ref_manual/KL02P32M48SF0RM.pdf
sns resist:
opamp:
current sense, fixed at 80 gain: http://www.mouser.com/ProductDetail/Analog-Devices/AD8293G80ARJZ-R7/?qs=sGAEpiMZZMvEn2pkGav3bNYdL9E%2foSzJYdqf7Uk6kdc%3d that's a range of 0-4.125A with a shunt resistor of 0.010 Ohms. assuming 16-bit adc (on freescale kl25), ~15 bits per mA.
button:
http://www.mouser.com/Search/ProductDetail.aspx?R=1571621-1virtualkey50660000virtualkey506-1571621-1
usb connectors
Parts
26| Qty | Value | Footprint | References |
|---|---|---|---|
| 6 | 1uF | SM0402 | C4, C5, C7, C8, C9, C10 |
| 2 | 25K | SM0402 | R5, R6 |
| 1 | 0.1uF | SM0402 | C2 |
| 1 | 10uF | SM0603 | C11 |
| 1 | 2.2uF/16V | SM0603 | C6 |
| 1 | 330R | SM0402 | R3 |
| 1 | 390K | SM0402 | R7 |
| 1 | AAT3221 | SOT23-5 | U3 |
| 1 | ARM_10PIN | ARM_10_PIN_SMT | J1 |
| 1 | GND | TEST_0.100 | P3 |
| 1 | LED | SM0603 | D1 |
| 1 | LVK12-SHUNT | lvk12 | R4 |
| 1 | MAX9938 | sot23-5_noah | U1 |
| 1 | MKL02ZXVFG4 | MKL02_QFN16 | U2 |
| 1 | OLED_FPC_CONN | oled_fpc_30 | J_1 |
| 1 | RX | TEST_0.100 | P2 |
| 1 | SW_PUSH | spst_pushbutton_smd | SW1 |
| 1 | TX | TEST_0.100 | P1 |
| 1 | USB_FEMALE_A | usb_female_a | J3 |
| 1 | USB_MALE_A | usb_a_male_M701-280442 | J2 |
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Questions
How big is the Usb pwrmon PCB?
It measures 45.2 × 21.8 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Usb pwrmon use?
26 parts. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the Usb pwrmon KiCad files?
From the noahp/usb_pwrmon repository on GitHub, at the commit this page was made from: the board is hw/kicad/usb_pwrmon.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Usb pwrmon design in my own project?
Its repository states no licence, so its author keeps all rights: ask noahp before reusing the design.