![]() ![]() ProcessOne curates two monthly newsletters – tech-focused Real-time Stack and business-focused Real-time Enterprise. I will continue the programming to add the mapping functionality and a nice demo mode. I hope to be able to drive it with my smartphone soon. I will use it for I2C debugging and visualization. It is a 34 years old Circuitmate 9020 (bought in 1985). One of my colleague has been cleaning his lab, and he asked me if I was interested to have an old 20 MHz oscilloscope. F : Buttons and their pull down (3.3V or 5V depending on the GPIO).B : Level shifter between Arduino (5V) and Raspberry Pi (3.3V).In Liège, we would say "mettre une noquette de colle" which translates to "put a knob of glue". I was skeptical at first but really much effective and fun. User $ i2cdetect - y 1 0 1 2 3 4 5 6 7 8 9 a b c d e f 00 : - 10 : - 1d - 20 : 20 - 30 : - 40 : - 50 : - 60 : - 6b - 70 : 70 - Gallery "Scaffolding" with hot glueĭuring the past few months, my best friend has been my hot glue gun. I've used the I2C scanner provided by the Arduino documentation. I2C devices are recognized by the Arduino (5V) and the Raspberry PI (3.3V) with the help of a level shifter. I☬ is a bus communication that allows multiple device to communicate with each other. The perfboards are fixed on metallics spacer bars to avoid shortcuts. It is really useful because it decrease the wiring. The aim is to connect it to the negative pole of the battery. I have been advised to use an epoxy base coated with a copper layer. Microcontroller must switch between protocols. The sensor cannot be addressed by I2C protocol, however, the sensor can be connected to an I2C bus without interference with other devices connected to the bus. The serial interface of the SHT7x is optimized for sensor readout and effective power consumption. The documentation of the SHT71 explains why the sensor has no I2C adress. SHT71 relative humidity and temperature sensor.6 HC-SR04 Ultrasonic sonar distance sensor for surrounding obstacle detection.MinIMU-9 v3 I2C Inertial measurement unit ( IMU): 元GD20H (gyroscope): 0圆B, LSM303D (3-axis magnetometer and 3-axis accelerometer) 0x1D.In addition, the following hardware are also mounted to provide information and input/output. Emergency stop (cut Arduino power) ( Ebay).The LEDs aim to provide status information The Agayon has now 8 LEDs and 6 switches. The depreciation of the "Execute action" is actually discussed. For now, I just don't use the "Execute" button as "Forward" does the job. Maxime proposed a patch to fix Slixmpp and it should work on SleekXMPP. It seems difficult to fix the protocol at the moment without breaking compatibility. He sent an email on the "Standards" mailing list and some responses followed. I don't see a place in the XEP that says that next or execute can be equivalent to complete.Slixmpp shouldn't assume execute is the start of a command. ![]() ![]() To quote him, there are two problems (see the bug report for the whole explanations): The XMPP community is great and Maxime Buquet responded quickly. I reported the problem to SleekXMPP and its fork SliXMPP. When I try to use the "execute" button, SleekXMPP start a new session and Gajim complains that the session identifier has changed. R1D3 displays the following menus and submenus (in french): The Ad-Hoc extension allows one to send commands to an XMPP bot. As the hardware base of the Agayon completely changed, I preferred to change the code name to maintain coherence between hardware and software.Īs I made tests with SLeekXMPP to control the bot, I observed some problems with Gajim. I hesitated a long time before forking it. I forked my own project, r1d2 to update it. After months of work on the Agayon, I can present some significant improvements ! This article is a little bit longer than the previous ones but it worth the read! Software updates !ĭuring the past few weeks, the code base of the Agayon has been updated. ![]()
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