RAYSHOBBY.NET

News and Updates We’ve recently found a technical issue with Blynk’s QR code scan feature that makes the Blynk app not work properly on some iOS devices. The symptom is that the app can receive push notifications but the distance value, read count, and LCD widget are not updating. Please check this forum post for […]

Read Full Post »

Since the first version of ESPToy, I’ve done some pretty rapid revisions. This post is to introduce the new minor revision 1.21, with LiPo battery jack and charger. As you can see in the annotated diagram below, the main components are the same as ESPToy 1.2: a color (RGB) LED, pushbutton (wired to GPIO0, so […]

Read Full Post »

A little while back I released the very first version of ESPToy — a ESP8266 Development Board with a few useful on-board components like color LED, button, and temperature sensor. It has a built-in ATmega644 microcontroller, and pin headers for plugging in a ESP-01 through-hole WiFI module. Shortly after that, I discovered the Lua firmware […]

Read Full Post »

ESP8266 module and ESP8266 Toy are available for purchase at OpenSprinkler Store. ESPToy version 1.2 announced! Check out the announcement post here. Resources for Programming ESP8266 using Arduino Content Introduction Features Demos Programming Flashing a New Firmware to ESP8266 ESP8266 — a very low-cost and flexible Serial-to-WiFi module that has gained a lot of popularity […]

Read Full Post »

In the past I’ve written several blog posts about how to use Arduino to interface with remote power sockets. For home automation involving powerline devices (e.g. lights, heaters, pumps, fans), this is my favorite solution, because it’s low-cost (remote power sockets are widely available at cheap price) and convenient (no messing around with relays and […]

Read Full Post »