2 layers
2 layers50 × 40 mm
Draw old
notthetup/draw2Power and Current Draw meter
- Size
- 50 × 40 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 38
- Nets
- 36
- Pads
- 130
- Tracks, vias
- 235, 26
- Pours
- 5
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 7 Jan 2017
- Updated
- 17 Mar 2024
Overview
Draw old is an open-source printed circuit board by notthetup, from the notthetup/draw repository on GitHub. It is a 2-layer board of 50 × 40 mm with 38 parts on 36 nets, routed with 235 tracks and 26 vias.
It is built around the TPD4E002DRL. Its parts include 15 resistors, 6 capacitors, 6 connectors, 3 ICs and 1 diode. It belongs with the Silicon Labs (EFR32, EFM) boards of this library.
Main components
1README
readme.mdDraw
INA260 based voltage and current draw measurement board.
This is a INA260 based board for measuring voltage and current draw (with builtin shunt) and output over USB (CDC).
Components
- INA260 - Current Sensing Amplifier With Integrated Shunt.
- EFM32HG309 - Simple Microcontroller for I2C -> USB conversion.
- TPD4E002 - ESD Protection IC
Resources
Parts
38| Qty | Value | Footprint | References |
|---|---|---|---|
| 7 | 0R | Resistors_SMD:R_0805_HandSoldering | R1, R2, R3, R4, R5, R10, R12 |
| 3 | 1K | Resistors_SMD:R_0805_HandSoldering | R13, R14, R15 |
| 3 | 1uF | Capacitors_SMD:C_0805_HandSoldering | C2, C3, C5 |
| 2 | 0R_NP | Resistors_SMD:R_0805_HandSoldering | R9, R11 |
| 2 | 15R | Resistors_SMD:R_0805_HandSoldering | R6, R7 |
| 1 | 0.1uF | Capacitors_SMD:C_0805_HandSoldering | C4 |
| 1 | 100R | Capacitors_SMD:C_0805_HandSoldering | L1 |
| 1 | 100R | Resistors_SMD:R_0805_HandSoldering | R8 |
| 1 | 1nF | Capacitors_SMD:C_0805_HandSoldering | C6 |
| 1 | 4.7uF | Capacitors_SMD:C_0805_HandSoldering | C1 |
| 1 | Debug Conn | Pin_Headers:Pin_Header_Straight_1x04_Pitch2.54mm | P3 |
| 1 | EFM32HG309 | Housings_DFN_QFN:QFN-24-1EP_5x5mm_Pitch0.65mm | U1 |
| 1 | I2C Conn | Pin_Headers:Pin_Header_Straight_1x04_Pitch2.54mm | P1 |
| 1 | INA260 | Housings_SSOP:TSSOP-16_4.4x5mm_Pitch0.65mm | U3 |
| 1 | LED | LEDs:LED_0805 | D1 |
| 1 | Power_IN | Terminal_Blocks:TerminalBlock_Pheonix_MKDS1.5-2pol | P5 |
| 1 | Power_OUT | Terminal_Blocks:TerminalBlock_Pheonix_MKDS1.5-2pol | P6 |
| 1 | SW_Push | draw:Tact | SW1 |
| 1 | TPD4E002 | TO_SOT_Packages_SMD:SOT-553 | U2 |
| 1 | UART Conn | Pin_Headers:Pin_Header_Straight_1x04_Pitch2.54mm | P2 |
| 1 | USB_OTG | Connect:USB_Micro-B | P4 |
The 33 most common of 38 parts.
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Questions
How big is the Draw old PCB?
It measures 50 × 40 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Draw old use?
38 parts, built around the TPD4E002DRL. 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 Draw old KiCad files?
From the notthetup/draw repository on GitHub, at the commit this page was made from: the board is schematics/draw_old.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Draw old design in my own project?
Its repository states no licence, so its author keeps all rights: ask notthetup before reusing the design.