4 layers70 × 70 mm
1.Electronics
I-M-Robotics-Lab/STM32-Quadcopter
Quadcopter design based on STM32F411CEU Blackpill flight controller. Compatible with INAV 6.0 firmware.
57 parts80GPL-3.0
2 layers48 × 33 mm
TemperatureHumidityEPD
kevinkessler/TemperatureHumidityEPD-PCB2PCB Kicad Files for my Temperature/Humidity EPaper Display
- Size
- 48 × 33 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 25
- Nets
- 18
- Pads
- 75
- Tracks, vias
- 158, 7
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 4
- Created
- 7 Apr 2018
- Updated
- 17 Jan 2024
Overview
TemperatureHumidityEPD is an open-source printed circuit board by kevinkessler, from the kevinkessler/TemperatureHumidityEPD-PCB repository on GitHub, published under the GPL-3.0 licence. It is a 2-layer board of 48 × 33 mm with 25 parts on 18 nets, routed with 158 tracks and 7 vias.
It is built around the IRLML6344. Its parts include 5 capacitors, 5 resistors, 3 connectors, 2 ICs and 1 transistor. It belongs with the lEDs and displays and sensors and measurement boards and the STM32 boards of this library.
Main components
1README
README.mdTemperature/Humidity ePaper Display KiCad Files
In order to investigate the low power modes and techniques for an STM32L0 class microprocessor, I've build a temperature and humidity display using an STM32L031F6 uC, an SI7021 I2C temperature/humidity sensor, and a Waveshare 1.54 inch black, white, and red ePaperDisplay. Starting with a straight-forward, non-optimized version of the software, this project will investigate and document the various power savings techniques that can be applied to the system, in order to get the power usage of the device down to a level that (hopefully) makes it practical to run off of a CR2032 coin cell.
Track the progress on Hackaday.io
Parts
25| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | 100n | Capacitors_SMD:C_0805_HandSoldering | C1, C2, C3, C5 |
| 4 | MOUNTHOLE | KevinLibrary:TH-M3 | MP1, MP2, MP3, MP4 |
| 3 | 10K | Resistors_SMD:R_0805_HandSoldering | R1, R2, R3 |
| 1 | 100K | Resistors_SMD:R_0805_HandSoldering | R5 |
| 1 | 100R | Resistors_SMD:R_0805_HandSoldering | R4 |
| 1 | 10u | Capacitors_SMD:C_0805_HandSoldering | C4 |
| 1 | 600Ohm | Resistors_SMD:R_0805_HandSoldering | L1 |
| 1 | Battery_Cell | KevinLibrary:CR2032_BATTERY_HOLDER | BT1 |
| 1 | Conn_01x02 | Pin_Headers:Pin_Header_Straight_1x02_Pitch2.54mm | J3 |
| 1 | Conn_01x05 | Pin_Headers:Pin_Header_Straight_1x05_Pitch2.54mm | J2 |
| 1 | Conn_01x08 | Pin_Headers:Pin_Header_Straight_1x08_Pitch2.54mm | J1 |
| 1 | IRLML6344 | TO_SOT_Packages_SMD:SOT-23 | Q1 |
| 1 | SI7021 | KevinLibrary:SI7021 | U2 |
| 1 | STM32L031Fx | Housings_SSOP:TSSOP-20_4.4x6.5mm_Pitch0.65mm | U1 |
The 22 most common of 25 parts.
Questions
How big is the TemperatureHumidityEPD PCB?
It measures 48 × 33 mm and has 2 copper layers, 1.6 mm thick.
What parts does the TemperatureHumidityEPD use?
25 parts, built around the IRLML6344. 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 TemperatureHumidityEPD KiCad files?
From the kevinkessler/TemperatureHumidityEPD-PCB repository on GitHub, at the commit this page was made from: the board is TemperatureHumidityEPD.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the TemperatureHumidityEPD design in my own project?
Its repository publishes it under the GPL-3.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
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