Hi! i have recently started working on a Temperature and Humidity Sensor TinyShield (ASD2511-R-T) and faced the issue as shown in the attachment: No device found on com5.

I have followed the tutorial as shown in the TinyShield webpage and worked through the steps. 1) Installed the Arduino IDE, 2) Installed the Si7021 Arduino Library, 3)Download the .zip file of the example program and open it in the Arduino IDE.

However, when I proceed to upload the program, the following error had occurred. This is the first time i am working on a TinyShield product.

Any help is appreciated! Thanks!

First make sure you are using a USB cable that actually transmits data. Many cables you have around the house now are only for charging devices.

One thing you can always try is giving your board a reset: this will load a bootloader that will connect to the computer. Otherwise it is easy enough for software initialization in your program to end up disrupting the USB communication.

Thanks for the help! testing the cables, different boards and the sensors. I had replaced the board and use the following board and processor. Its working and sending the data that i need now!