How to instantly replace existing Raspberry Pis by the ESP8266

For my outdoor sensors I used an RaspberryPi with BMP180 + TSL2561 via I2C transferring the sensor data via MQTT messages. During an IoT Meetup Session at codecentric office in Frankfurt we discussed the usage of an esp8266 and I was thrilled to get one and play with it. Adafruit HUZAAH ESP8266 breakout highlights 80-MHz-Mikrocontroller Wi-FiContinue reading

SweetHomeHub: Home Control with Raspberry Pi and MQTT – Part 1

Since quite a long time I am working on my universal Raspberry Pi based Intertechno-Remote (see former posts 1 2 3 4): I tried different approaches to trigger/control my remote control service via a custom HTTPServer/-Handler and a simple Vert.x verticle. Since MQTT v3.1.1 turns out as on of the de-facto standard protocols for theContinue reading

MQTT.fx 0.0.10 released

MQTT.fx 0.0.10 was released. Download latest binaries in all flavours at mqttfx.org. Bugs and feature requests can be reported via the issue tracker. New in this version: MQTT-Message Clipboard Option to copy the message payload to clipboard Service menus at publish and subscription panel: now you can clear received messages buffer and the recent topicsContinue reading

MQTT.fx 0.0.9 released

A new version of MQTT.fx is available (probably the last release before JavaOne) Download latest binaries in all flavours: mqttfx.org. Bugs and feature requests can be reported via the issue tracker. This release comes with some new features: Message Font Size (in respect to Gerrit Grunwald @hansolo_) To improve ledibility of large message bodies nowContinue reading

MQTT.fx 0.0.3 released

Download latest binaries HERE. Most significant change: I have added a pane to show some status values of the broker: In v0.0.3 these $SYS topics are recognised (Tooltips are showing the descriptions): Version: $SYS/broker/version Build: $SYS/broker/timestamp Uptime: $SYS/broker/uptime Subscriptions Count: $SYS/broker/subscriptions/count Changeset: $SYS/broker/changeset Clients Connected: $SYS/broker/clients/active Clients Expired: $SYS/broker/clients/expired Clients Disconnected: $SYS/broker/clients/inactive Clients Maximum: $SYS/broker/clients/maximumContinue reading

NetBeans 8 – Shortcut to Remote Platforms

The recently released NetBeans 8 holds a great gift for all Java Embedded Developers: Build-in support for Remote Java Standard Edition platform. To introduce this great and handy feature I created some screencasts: Part1: headless Part2: JavaFX on Pi Part 3 – Remote Platform Debugging José Pereda has also blogged about this feature in action:Continue reading