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Last year, we featured 100 projects in 100 days for the original PSoC 4 Pioneer Kit and shared many ideas with the community.
We're back, kicking off yet another 100 projects effort - this time with the brand new BLE Pioneer Kit, featuring PSoC 4 BLE.
PSoC 4 BLE combines and ARM Cortex-M0 CPU with a Bluetooth Low Energy radio in a single chip. It also carries all the other PSoC programmable technologies, including the analog blocks (opamps, comparators, muxes, ADC), digital blocks (tcpwm, scb, usb), and of course, the industry's best CapSense touch-sensing technology - allowing designers to create the latest wearables and sensor-based gadgets for the Internet of Things.
Adding BLE capabilities to your embedded system has never been easier! With the new BLE Component, you can easily choose from the included BLE GATT Adopted Profiles, or even use the GUI-based tool to create your own, custom Profiles.
Check out the 100 Projects in 100 Days with PSoC 4 BLE blog here. All the projects are hosted in GitHub.
You can download the latest PSoC Creator with support for BLE for free at www.cypress.com/PSoCCreator.
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For the Dynamic Broadcasting project, is there a way to have CySmart on the PC continuously display the changes of the data value that is being updated in the firmware? Currently I have to stop and start the scan (scanning the devices) to see the updated data value.
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IIRC: If you go back to the connection screen, there is abutton to re-read all the GATT atributes (I think its called "discovery" or so).
But you can also enable notifications on that data, if the firmware supports it. Just write a 0x01 to the "client characteristic descriptor" (I think the user guide explains this too).
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Thanks for replying hli. When connected to a BLE device and seeing the GATT attributes listed and all, I have been able to enable notifications like you said and view the data changing on CySmart. However, since I'm broadcasting with this device and based on the configuration for the type of advertisement, I wouldn't be able to connect to it see the things you mentioned. Attached is a screenshot of what I'm seeing after I start scanning and select the device once it appears in the list.
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Sorry, somehow I missed the part about broadcasts (even though it was right front...). For that it might be best to create a support case with Cypress and ask for that feature in future versions.
(Or you build it by yourself - the CySmart dongle has a PRoC BLE device as core...)
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That's ok 🙂 Thanks much for your input hli. I'll create a support case with Cypress soon. Maybe later on when I get more familiar and experience with all this and have more time, I can mess around with building something like that 🙂
I ended up looking for Android apps that could help me with this. I found the Nordic Master Control Panel app and I'm working with it for now to monitor the data as it changes. I still have to re-scan for devices in order to continuously see the data changing, but the scan itself lasts for about a minute so I'm able to see all that happens within a minute before having to re-scan which is sufficient for the time being.
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I would like to suggest a sample project that incorporates many features. Being a newb it is much easier for me to remove than add characteristics.
I would suggest an app that
has the find me profile
Has the battery characteristic,
has a capsense characteristic
has an 8 channel analog input/characteristics
has an op-amp on one of those channels.
has an analog output with an op amp.
has debounced digital inputs for switch inputs with their status sent to a bit mapped button characteristic
incorporates a character lcd over parallel and i2c with some real time analog values.
incorporates an spi or i2c/i2s oled display with some real time analog values.
has a digital PWM input measuring charactersistic
has a pwm digital output.
has the RGB led control
has a uart gps input
reports die temp
incorporates a uart over BLE with debug information
incorporates a physical uart with debug information
log analogs to sd card
incorporate a viewer in cysmart that lets you monitor several characteristics if not all above simultaneously on the same screen
It would be neat to be ableto configure a readout on a client from the chip. i.e. for a given characteristic you could pick from a numeric or bargraph, a display size/region and cysmart could interpret the data as such for prototyping with no custom app needed. Maybe allow selecting multiple characteristics for display.
Maybe add the functionality to cysmart as a "robot controller" screen with buttons/joysticks and some feedback status lights/debug tx/rx textbox.
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More ideas:
Fast led library support.
https://github.com/FastLED/FastLED/wiki/Chipset-reference
A ble ws2811 compatible driver would be awesome. Or, perhaps a hardware block for driving led strips that takes advantage of psoc hardware.
Ssd1306 oled display example.
Finally an example with 4 analogs, scaled voltage output to the oled, output over serial, watched via debug and transmitted over a custom profile via notification. Plus a writeable characteristic to allow for remote control.
.
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And another suggestion...
Add an arduinoish library to alias common functions in psoc to arduino compatible functions... This could make things a bit easier for those with experience on that platform.
ie.
analogRead()
analogWrite()
digitalWrite()
digitalRead()
serial.print()
serialprintln()
And, any others you would like to support.
Good News,
I found a library for the WS2811 leds by adafruit.
see here:
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@macsboost -
we made a UDB-based Component to control the WS2811/12 LED lights
this can easily be ported to PSoC 4 BLE (the UDB blocks are the same)
http://www.cypress.com/?rID=103610
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Thank you
This is very cool.
As I work through the examples, I find it difficult to follow the ble implementation. Following the program flow from a variable to transmission is not easy. More simplification of these tasks would be helpful. Perhaps create another ble component with these to provide backwards compatability and add this fumctionality?creating a notification should be as simple as one line of code. As it stands you really have to get intimate with the intricacies to make it work
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Another Project suggestion
In the previous 100 Projects in 100 Days, using the PS0c 4 Pioneer Kit, Projects 29 ( Bluetooth Home Automation System) and Project 30 (Bluetooth with GLCD) used the Android AP called Bluetooth SPP ( now called Bluetooth SPP Pro) to control devices like LEDs, Relays, etc via the Pioneer Kit. The Bluetooth SPP basically exposed a 12button keyboard on a cell phone/tablet where each individual button could be labeled and an programmed to send user defined codes to a Pioneer Kit with a Bluetooth SPP Shield or module. I found these two projects very useful for prototyping and for moving projects quickly from Android to Windows APS using Delphi.
I would like to similar projects using the BLE board(s).
James