New release of Great Cow BASIC compiler

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Evan tipped us off that the Great Cow Basic development team has recently released a new build of Great Cow BASIC compiler with lots of enhanced features. For those who are unfamiliar with Great Cow BASIC, it is an easy to use BASIC compiler for PIC and AVR microcontrollers. The best thing about it is that it is completely free with no restrictions on the program size. I first came across it in 2008 when I was looking for a free High-Level compiler for developing PIC applications. Great Cow BASIC looked promising to me, and was very easy to learn.

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DAN64: A DIY 8-bit microcomputer using Arduino

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Juan J. Martínez’s DAN64 is a single board 8-bit microcomputer based on Arduino board and features a keyboard input, an output screen, and is able to load and run external programs. Current version of the project has the following features: Composite video black and white output, 256 x 192 resolution, 32 x 24 characters (8 x 8 pixels font, code page 437 character set). PS/2 keyboard support. 6502 virtual machine with system call interface to native code services. Linear 64KB memory access from the virtual machine (256 bytes page zero, 256 bytes hardware stack, 6144 bytes of video RAM and 58880

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Tutorial on Thermocouple Amplifier

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Bill Herd at Hackaday has posted a new video tutorial on Thermocouple Amplifier that covers the most basic instrumentation required to interface a thermocouple to a microcontroller ADC channel for reliable temperature measurements. A thermocouple consists of a junction of two wires made of different metals and are characterized by a temperature coefficient that is required to convert the thermocouple output voltage to the sensed temperature. In addition, the thermocouple also needs to be calibrated to a reference temperature point. In his short tutorial, Bill explains a practical circuit to implement precise temperature readings from a thermocouple. Different thermocouples sensors

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Raspberry Pi smartphone with 2G support

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Tyler Spadgenske’s entry to 2015 Hack-A-Day Prize contest is tyfone, a DIY smartphone with 2G support using the Raspberry Pi, a 3.5in touchscreen display, and an Adafruit Fona module. The Raspberry Pi handles all the processing, and connects everything together. The TFT talks to the Raspberry Pi over SPI, and the FONA talks to it over UART. Everything is powered with a 1200mah battery connected to the FONA.The FONA has a charging circuit perfect for use with the phone. Since the battery is only 3.7v, a power boost is used to boost the voltage to 5v for the Raspberry Pi and

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Meet Konekt Dash, a cellular development kit for IoT

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Konekt Dash is a new cellular network development kit for the Internet of Things (IoT) applications and is looking for funding at Kickstarter. The Konekt Dash is a cellular development kit for building Internet of Things (IoT) devices. You can use it to build all sorts of fun connected products like sensors, tracking devices, alarm systems, connected car applications, and more (see examples below). The Konekt Platform is made to bring enterprise grade features to the individual developer, so its perfect for a solo hobby project or building the connected hardware business of your dreams! Each Konekt Dash comes preloaded with

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