How to Design a Digital Logic Circuit Using PSOC

A project on hackster.io, made by Juan Esteban Paz demonstrates how you can design a digital logic circuit using PSoC from Cypress. All you need is a CY8CKIT-042 PSoC® 4 Pioneer Kit, buttons and LEDs.

PSoC 4 Architecture (PSoC 4200L)
PSoC 4 Architecture (PSoC 4200L)

PSoC 4200 family from Cypress is an ARM-based Cortex-M0 MCU, combined with  programmable logic blocks beside the typical set of  peripherals, such as  ADCs, DACs, UARTs, SPIs, and general I/O. These programmable logic blocks are what really make PSoC different from other ordinary MCUs.

Juan designed a digital logic circuit to make each push button works as a toggle button. PSoC creator IDE was used in this project.
The final diagram includes push buttons, each is connected to a flip flop, a lookup table, a PWM unit and finally Muxs  to choose the state of the led: on, off, breath or pulse LED.

PSoC_cir

 

[Project Page]

Wi-fi browser controlled servomotors

This instructable shows how to control some servomotors remotely in a wi-fi network, using an ordinary internet browser. This might be used in several applications: toys, robots, drones, camera pan/tilt, etc. The motors were attached to an Arduino Uno, which connects the wi-fi network through a ESP-8266 module. The control interface was designed with HTML and jQuery. by IgorF2 @ instructables.com

Wi-fi browser controlled servomotors – [Link]

Colour grabbing Scribble Pen

The Scribble Pen represents a real breakthrough, simply point the pen’s scanner at a colour, and draw in that colour with the Scribble Pen or Scribble Stylus.

“We’re passionate about making people’s lives more colourful, artistic, energetic and happy and that’s exactly what our breakthrough products offer,” commented a spokesperson from Scribble. “Scribble allows an artist to borrow the colours around them and use the world as their art palette.”

Colour grabbing Scribble Pen – [Link]

Mid-power UV LED operates at 365 nm

Vishay VLMU161

A ceramic-based UV LED, the VLMU1610-365-135 from Vishay provides typical radiant power of 18 mW at 20 mA and 50 mW at 60 mA over a wavelength range of 362.5 nm to 370 nm. The silicone lens of the device enables extremely long lifetimes of up to 25,000 hour, compared to typical mercury lamp lifetimes of 10,000 hours. by Susan Nordyk @ edn.com

Housed in a compact 1.6×1.6×1.4-mm surface-mount package, the environmentally friendly VLMU1610-365-135 is free of heavy metals and provides increased reliability with its shock resistance and immunity to degradation from frequent on/off switching. Aimed at medical, industrial, and printing applications, the LED allows the use of simple low-voltage circuitry and requires no warmup period. The VLMU1610-365-135 has a forward current of up to 60 mA and achieves an angle of half intensity ±67.5° at 20 mA.

Mid-power UV LED operates at 365 nm – [Link]

Review: Siglent SDS 2304X oscilloscope

Siglent_SDS_2304A_vs_Keysight_MSOX_3054A

Jack Ganssle @ embedded.com reviews the Siglent SDS 2304X oscilloscope.

I’ve had a Siglent SDS1102CML two channel 100 MHz bench scope here for the last two years. I demand a lot from my test equipment so had low expectations when it arrived. After all, how good can a $359 unit be? Turns out, quite a good for the price. I reviewed it here. But the screen is smaller than most modern pro scopes with lower resolution than many would like. And 100 MHz just doesn’t cut it for a lot of applications. I figured Siglent was positioning itself at the low end of the market.

Review: Siglent SDS 2304X oscilloscope – [Link]

The smallest camera module for mobile devices

20160517110622_Nidec-Copal-Camera-Module

Nidec Copal, the world’s biggest manufacturer of camera shutters, has developed the smallest, thinnest and lightest camera module for mobile devices. It measures just 8.5 x 8.5 x 4.2 mm and weighs 0.57 g. The new camera module is about half the size of Nidec Copal’s previous module. by Harry Baggen @ elektormagazine.com

The new camera module has a 16 megapixel, 1/3.1″ CMOS image sensor with a pixel size of 1.0 µm. The focal length of the lens is 3.6 mm, and the maximum aperture is f/1.9 for high light sensitivity. The module has autofocus capability with a focus range of 10 cm to infinity. Series production of the new module is planned to start in the fall of 2016.

The smallest camera module for mobile devices – [Link]

Your laundry is done!

IMG_20160728_130025x

Tinkerman @ tinkerman.cat tipped us with his latest project. It’s a laundry notification system that will message you when it’s finished.

I often forget my wet clothing in the washer and after a day they really smell… so I thought about monitoring my washer and get a notification in my phone when the laundry is done. An ESP8266 based Sonoff by ITead, current monitoring circuitry, a DHT22 (the washer is in the cellar) and a custom case. MQTT for messaging, Node-RED to manage messages and monitor activity and Pushover service to get a “Your laundry is done” message on my phone 🙂

Your laundry is done! – [Link]

Thunderboard React – A New BT 4.2 IoT Kit From Silicon Labs

Silicon Labs recently introduced a new platform that enables users to develop their own sensor driven IoT application, this platform is called Thunderboard React and it’s for 29$.

Thunder_img

Thunderboard contains Silicon Labs’ BGM111 bluetooth smart module connected with punch of sensors which are: Silicon Labs’  Si7021  relative humidity and temperature sensor, Silicon Labs’ Si1133 ambient light and UV sensor, Silicon Labs’ Si7201 omni-polar, hall-effect sensor and Invensense’s MPU-6500 6-axis motion sensor.

Thunder_dig

Silicon Labs also provides a mobile app for Android implanted in native code, and an iOS app implemented in Swift. The app streams sensors’ data to the cloud.

Thunder_app

Firmware can be developed using Simplicity Studio v3 and C-SDK software stack from Silicon Labs.

[Product Page]
[ThunderBoard-React User’s Guide]

RTL8710 Is a New ESP8266 Competitor

RTL8710

In the last two years, ESP8266 was the Wifi Chip/Module which dominated the market of hobbyists, even a lot of commercial products use ESP8266, due to the low price, ease of use and large community around ESP8266.

RTL8710 is a Wifi network solution from the Taiwanese Company Realtek. It can operate independently, or as a slave to another MCU host. The same way of ESP8266.
RTL8710 has a built-in ARM Cortex M3 MCU at 166 MHz, 1MB flash and peripherals like UART, PWM, I2C, GPIO and PCM, a more detailed comparison is shown in the  table bellow:

Table courtesy of cnx-software
Table courtesy of cnx-software

If you like to have a quick hands on RTL8710, then you can order a development board for RTL8710.

RTL8710DK

Via: cnx-software

IEEE Ranking for Programming Languages – 2016

Are you an embedded system programmer? Checkout the rank of your favorite programming language according to IEEE Spectrum ranking. C language is in the first place for programming devices controllers, followed by C++, Arduino, then Assembly.

IEEE Spectrum has special methods to figure these ranks, for example they “measure the number of hits for each language by using Google’s API to search for the template (X programming)”, the page states, also using some statistical data from GitHub.

You can review The results in a dynamic way either using the overall ranking by IEEE Spectrum, or by making your own.

IEEE_Ranking