Mapping The Things Network with a LoPy (3). Wiring diagram

This part of the project will show the wiring diagram for the LoPy tracker.

Schematics

The tracker is built around the LoPy of PyCom. It’s a MicroPython programmable ESP32 with LoRa transceiver on board. Although one can connect to it using the device’s AP mode a serial to USB FT232R interface was used. This also powers the unit through the USB 5V. The LoPy has a 3.3V regulator on board capable of delivering 1.2A, well enough for the peripherals we will be adding.

Communication to the display uses I2C and the GPS module uses a UART port. During installation the FT232R was also used to connect and configure the GPS.

Most components were obtained through Banggood:

Some pictures for further inspiration

20180305_080409

20180306_215435

20180316_085610

In full operation

IMG-20180315-WA0004

Results as shown on TTN Mapper

Advertisements
This entry was posted in LoRa and tagged , , . Bookmark the permalink.

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Google+ photo

You are commenting using your Google+ account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s