Category Archives: Uncategorized

Web Bathroom Scale

This project  connect online a bathroom scale.

Choose the User, step on the scale and the weight ill be stored in a web database .

Then we can read the weight in a browser with a simple php page.

HARDWARE:

n. 1 Arduino Mega 2560

arduino_mega_r3_002_hd

n. 1 Breakout Board with HX711
HX711
Some links:
Ebay 1
Ebay2 dalla Cina
Aliexpress

n. 1 wi-fi ESP 8266-01 module

esp8266

to connect to wi-fi…

n.1 button switch

pulsante

n.1 Proto shield for Arduino Mega but you can use a  breadboard too

mini-breadboardlu-arduino-mega-2560-r3-proto-shield-kiti-13558-49-b

n. 1 Display LCD with I2C

i2c-serial-lcd-1602-module

 

By pressing the button the user can choose from among those stored in the Arduino sketch,

fotoo1

found the user, step on the scale, at this point your weight  will appear on  display

foto2

when appear an asterisk data has stored on web.

Then I can see the web page to read the different “weights” with date and time:

schermata

In the next post: wiring and software

Now this is an image of wiring…

arduino

 

 

LoRa breakout board for RN2483 and Arduino Pro Mini 3.3V

Aim of this project is to create a node which implement LoRa sensors and actuators .

Using an Arduino Pro Mini 3.3V in this way I solve  the problem to use voltage regulators for RN2483 .

Simply load the sketch on Arduino Mini Pro and the  device is ready to send and receive information through a LoRa Network .

51eeb8f9ce395f0778000000
Arduino Mini Pro 3.3v

This is the image of the PCB

imma02

and this with components …

imma01

The RN2483 will be welded on the copper side of the PCB , with the remainder on the component side .

I have not use a 2 sided PCB, I have made some jumpers to connect 3.3V and GND .