The PS Thermo is a smart thermostat project developed by me, consisting of a control hub (that also acts as a gateway) and various sub-GHz RF wireless sensors/actuators. In essence, it is a much more advanced version of the BBoilRF…
I decided to test a 3.5″ TFT version of the TFT32 project as the original version’s 2.4″ 320×240 TFT is a bit small-ish. The TFT I chose is an ILI9488 480×320 3.5″ with resistive touch. The upgrade was pretty straightforward,…
Performing Over-The-Air firmware update over a slow/unreliable internet connection may be challenging. I have had many cases, where the edge nodes to be updated are in a remote rural area with a 2G modem internet connection, and pushing a let’s…
My recent IoT projects are capable of performing OTA firmware updates, I have previously blogged about the importance of this capability. I normally use MQTT over SSL as a means of communication between the edge nodes and the cloud backend,…
I am working on a thermostat control project using the TFT32 hardware, let me share a video of the Wi-Fi configuration GUI (still work in progress). The Wi-Fi provisioning via GUI addresses one of the significant challenges when setting up…
Those of you that follow me on Twitter might already know that I’ve been working on an ESP32 based IoT control hub/gateway project with touch TFT lately. Let me describe what problems I am trying to address with this project.…
I’m one of the lucky 200 that got their hands on the early beta of Espressif’s new ESP32 chip evaluation board. It is the “big brother” to the popular ESP8266, Espressif has though noted that it should not be treated…