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SX1308 Fixed 5V Positive and Negative Voltage Module

Overview

The SX1308 fixed 5V positive and negative voltage module allows voltage modification by adjusting resistors R1 and R2. SEPIC boost converter with CUK inverted output.

PDF_SX1308 Fixed 5V Positive and Negative Voltage Module.zip

Altium_SX1308 Fixed 5V Positive and Negative Voltage Module.zip

PADS_SX1308 Fixed 5V Positive and Negative Voltage Module.zip

BOM_SX1308 Fixed 5V Positive and Negative Voltage Module.xlsx

93331

Temperature and humidity detection

It measures temperature, humidity, and battery level, and operates with low power consumption.

The hardware design was inspired by competition videos. The entire development process, from circuit diagram design to PCB layout, followed the learning videos. The software drivers referenced the provided code, while the application was modified to support displaying voltage, temperature, and humidity, and can be woken up by a button. After waking up, the display can be switched between temperature/humidity and battery level via a button. I personally tested it for three or four days, and the battery consumption was normal. Overall power consumption is sufficient for use. Videos are available for reference. The code is attached, but its bug-free nature is not guaranteed. It has been running normally after several days of testing.

VID_20240803_191716.mp4

TH.zip

PDF_Temperature and Humidity Detection.zip

Altium_Temperature and Humidity Detection.zip

PADS_Temperature and Humidity Detection.zip

BOM_Temperature and Humidity Monitoring.xlsx

93332

220V-12V-30W standard power supply

220V-12V-30W standard power supply, dual output

220V-12V-30W standard power supply, dual outputs: one direct output and one fixed 12V or adjustable output. Discussion and guidance are welcome. (Only group: 289917684)

3ded5f8f80c9965eacdd7c670ffb184.jpg

5e89eabc5d6abe379e6ca7b21c711c2.jpg

473412c24319667580c4fc11607b47c.jpg

PDF_220V-12V-30W Standard Power Supply.zip

Altium_220V-12V-30W Standard Power Supply.zip

PADS_220V-12V-30W Standard Power Supply.zip

BOM_220V-12V-30W General Power Supply.xlsx

93333

electronic

Design Files

All reference designs on this site are sourced from major semiconductor manufacturers or collected online for learning and research. The copyright belongs to the semiconductor manufacturer or the original author. If you believe that the reference design of this site infringes upon your relevant rights and interests, please send us a rights notice. As a neutral platform service provider, we will take measures to delete the relevant content in accordance with relevant laws after receiving the relevant notice from the rights holder. Please send relevant notifications to email: bbs_service@eeworld.com.cn.

It is your responsibility to test the circuit yourself and determine its suitability for you. EEWorld will not be liable for direct, indirect, special, incidental, consequential or punitive damages arising from any cause or anything connected to any reference design used.

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Update:2026-03-27 19:25:45

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