Category: Blog Posts

Fiberglass And Plastic

In an earlier post, Temperature Control Part 2 – PC Board, I provided the Eagle 7.7 files (both schematic and board files) for the PC Board. At that time I indicated I use OSH Park (they are not paying me for this plug). As an aside, note that today’s...

Testing The Project

If you are like some of the readers, you are very interested in the project as a complete whole. To that end, you can download the project from here. It an archived bundle, zipped up. Unzip it and load the project in PSOC Creator. If you are using VMWare...

Graphic User Interface Part 2

The Nextion provides a serial port to interface to a host processor. The host processor (in our case, the PSOC) can communicate with the code running on the Nextion, or with the flash loading program residing on the Nextion. Communicating with the flash loading program residing on the Nextion...

Graphic User Interface Part 1

In order to make our project useful, we need a user interface that is not tied to a terminal window. That is because we eventually want to place this unit on a flat surface, or hang on a wall, and interact with it as a complete unit. Therefore we...

Temperature Control Part 2 -PC Board

Today we will see the temperature controller circuit board. This board was designed with the idea that a human with a soldering iron would be working on it. Everything is solderable by hand, and the parts used are robust enough to survive some abuse. PSCarrier Schematic The schematic of...

Temperature Control Part 1

If you have been following since the beginning, you now have a breadboard with a CY8CKIT-059, a temperature sensor, and an IR Led driven by a Darlington Transistor or an FET. You also have a UART over the USB that can be connected to using TeraTerm or Putty under...

Infrared Sending Part 2

Parts In the previous post, I gave you the internals of the PSOC to create the IR transmitter. I experimented with several IR LED’s and eventually settled on some LED’s from Vishay. Their TSAL6xxx series is a good through hole part, available at Mouser. The external transistor can be...

Infrared Sending Part 1

Sending IR signals is difficult when using a device that is expected to be wall or shelf mounted. You have to create a strong enough signal for it to bounce around the room and be received by the target under less than ideal conditions. To accomplish this, you have...

Infrared Remote Recording Part 3

In the previous posts, we created an IR reader, then captured the data and stored it into memory. In this post, I will show you how to use an inexpensive logic analyzer to the Macintosh and look at the waveforms. Logic Analyzer LHT00SU1 I tend to use the LHT00SU1...

Infrared Remote Recording Part 2

The PSOC electronic design shown in the last post provides a mechanism for capture of the Infra-Red light (IR) broadcast by the remote. You will find on the internet that most IR remotes use Manchester Encoding. I found that for A/C units, that was not completely true, so I...