JFET

environment-sensor-bluetooth

Overview

# Environment Sensor Bluetooth Hardware This project is the hardware project corresponding to the firmware project [@hktkzyx/environment-sensor-bluetooth](https://github.com/hktkzyx/environment-sensor-bluetooth). The GitHub repository of this project is [here](https://github.com/hktkzyx/environment-sensor-bluetooth-hardware). ## Introduction This device measures the temperature, humidity and illumination of the environment and sends them to The corresponding [gateway](https://github.com/hktkzyx/bluetooth-mqtt-gateway). The device is powered by 18650 lithium battery or Type-C. Type-C power supply can charge lithium batteries. ## License [CERN-OHL-P v2](https://ohwr.org/cern_ohl_p_v2.txt) or later.

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.

Hot

Technical Resources More

Search Datasheet?

Supported by EEWorld Datasheet

Technical Videos More

Forum More

Update:2025-06-23 04:16:56

JTAG can downflash and run normally but cannot simulate
JTAG can downflash and run normally but cannot simulate. Which pin may be the problem? Among the 3 boards, 1 is normal and 2 have the above phenomenon. I soldered them myself and my level is relativel
I got my hands on a Raspberry Pi 2 (pictured above, taken with an old phone, just take a look at it for now)
[i=s]This post was last edited by azhiking on 2015-2-26 14:09[/i] I bought it before the holidays, and originally thought I would receive it in March, but it was delivered to my workplace on the 13th.
Using the encoder function of STM32, I am not very clear about the assignment of a data structure in the program. I would like to ask for your advice
I would like to ask what does TIM_ICInitStructure.TIM_ICFilter = 10 mean?
Cadence Chinese User Manual (Training Materials of Institute of Microelectronics, Chinese Academy of Sciences)
[url=http://www.baisi.net/thread-36669-1-2.html]Cadence Chinese User Manual (Training Materials of Institute of Microelectronics, Chinese Academy of Sciences)[/url]
LeCroy demonstrates 100 GHZ real-time oscilloscope
[color=#000][font=Tahoma, Simsun,][url=http://www.eetimes.com/document.asp?doc_id=1319038&]http://www.eetimes.com/document.asp?doc_id=1319038&[/url][/font][/color] [color=#000][font=Tahoma, Simsun,][u
c
[i=s]This post was last edited by paulhyde on 2014-9-15 09:28[/i] What qualities should a programmer have? Here are some suggestions.

Datasheet More

Circuits More