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Bezel thoughts I think you are right. I have purchased a 6060Z cnc machine for doing things like this but have it in storage for the moment as I am moving and jumping countries. One thought for routing such delicate and often small pieces is to use a Dremel tool with chamfering bit and...

Hi DougMck. In truth not for a couple of months maybe sooner but I wouldn't count on it. I feel your frustration (not with PJRC, they are awesome) but with the general lack of bezels for all of these displays that are being sold. At the moment my cost would be for the black plexiglass or...

Michael. I have that same 1.54 inch display, actually both versions, B/W and B/W/R. However, I am having trouble getting it to work with the Teensy 3.2 which I wish to use for a meter project. I am using the GxEPD library as well. Would you mind posting how you connected the display to your...

Hi DougMcK. I never did find a bezel for this display although I looked high and low. I have finally decided to make my own. I could design one and have one of the online shops cut it for me out of black plexiglass or whatever color you might want but I am a machine head as well so I intend...

Thank you. I have a smoker, electric, in need of a new controller. I will have a look at your solution!

Hi all. For the past few years I have been wire wrapping my projects and prototypes and quite happy to do so. I really like the process and what I consider to be the plus benefits of using this process. Just recently I purchased from eBay a Denver Gardner 14R2F battery powered tool. I am...

Well back to investigating the 4D display. What unit/model did you decide to use for your project? Thank you

Update to Alibaba inquiry for a daylight readable TFT LCD ILI 9341C. I am corresponding with a company about this product and awaiting a quote on a few units for testing. They can supply a resistive touch screen but apparently I would have to add my own chip to control the touch screen to my...

Thank you for the URLS. I knew about the Newhaven products but had never investigated the 4D products. They are interesting but also expensive and I am leery about using the 4D programming environment(s) as well as how they integrate with the Teensy 3.2 which is at the heart of my projects. I...

Good day. I have a meter project that I would like to use a 3.5 inch daylight viewable TFT LCD with touchscreen display in. I currently use the PJRC LCD but find it unreadable in some daylight use situations. I am looking at some of the Chinese suppliers. I would greatly appreciate having...

Dear Paul. Another fantastic project. My preference would be for at least a minimally daylight readable display option even if that cost extra. I have several hand held meter projects using the touch sensitive TFT display and it is unreadable even in very bright room light. Hence my desire...

Resolved Along with changes I made to the SD coding there was a conflict between the SPI of the SD card breakout and that of the 2.7 inch OLED display. When calling the display to show the resfreshed data after saving to the SD card I needed to add a " u8g2.begin();" to my "refreshdisplay()...

Good day. I have been working on this for days and have tried many work arounds but I am still having no success saving the last data set. The instrument readings and the button push which initiates it are all working. I can't seem to cause a successful sync or flush or close file function to...

Hello Paul. Thank you for your help and your very clear explanation. Although I had actually tried this sometime in the early morning today an other issue prevented the sketch from working at that time. I went back to the original files from Waveshare and did this minor edit as you described...

Well, I have had my Waveshare 4.3 inch e-paper display for 24 hours now and have had it working (on Arduino Uno) for the past two hours with different sketches to learn the commands and capabilities. Given the lazy refresh I am very impressed with the contrast and definition of the display. I...

My quick research says that one of the reasons for the slow refresh rate is that actual carbon particles have to "float" to the surface of the e-paper. Also, going white from black may be faster. Some people only change the characters that need changing and not the whole screen. There seem to...

I haven't put together the control board even though I have my PCBS. I have purchased Embedded Adventures' e-paper display with break out board: http://www.embeddedadventures.com/epaper_display_EPD-200200B.html and will try that out. Also, I have purchased the 4.3 inch e-paper board that is...

My OSHPark pcb order is on its way and I just received the parts from DigiKey. BUT, Digikey is out of several parts including the 34 position connector from Hirose Electric. It is back ordered until the end of December. I have no experience with this type of connector and have not found any...

Good evening all. I am at that stage where I would like to design and have made several project enclosure designs. I have been doing some searching but there are so many hits that it is hard to make any kind of decent choice. Eventually I want to make my own. Can anyone recommend a CNC...

Thank you for this heads up. I just went and reviewed it. As soon as I can get home tonight I am ordering the parts and pcb. This could be just the thing I need for several projects. I had been watching ePaper displays some months ago and then they seemed to go dormant and retailers stopped...

I am having the same slow USB issues on my Windows10 box and it is up to date and I don't believe I was/am using the insider preview. Let me know if redoing the USB portion works.

Once you do get back to communicating with your Teensy, check your program for an incomplete SD call (not closed file, etc.) I recently had exactly the same issue and it came down to that.

As one who once carried a slide rule (on my belt, oh yes) and remembers Sputnik and the whole space race, I have marveled at the continued evolution of electronic computation (I once built a simple analogue computing device). I have been developing first with Arduino Unos, then Dues and now the...

Thank you Kurt. Took your advice, also went and did further looking in the SD_Fat and ILI9341 libraries to see what and how the SPI transactions were being handled. I went back to basics and stripped out all the SPI transaction scripting I had put in to the example above. Still had trouble...

White screen with ILI9341 & SD data logger - SOLVED Hello. I have been struggling with this for most of this past week. I believe the issue is in the SPI coding I am using. I have tried to implement transactions, etc. I can implement SPI transactions when only working with the ILI9341...

My congratulations as well. As soon as I saw this thread this morning I opted in as well. My first Kickstarter support too. Good luck, may you have a lot of soldering to do! Even if it is a pain.

I have several of the Feather Teensy units and have wired one up to the PJRC ILI9341 display (not the touch one). This display works fine with regular Teensy 3.2 ( not mounted in Feather) projects but I can't get it to work with the Feather mounted Teensy 3.2. I have tried to find a...

That is great news, I wasn't sure how to even estimate how much "overhead" might be used if I did that. Currently I think I will write to to the SD every hour. Thank you

Thank you for your reply. Yes, this needs to be a robust application with the potential for many, many thousands of data saves. Hence my concern with EEPROM data writing/storage. I will look into using a RAM array. I have also looked at some ingenious FRAM solutions. Regards

Good day all. I have a data logger project recording the environment. I need to sample fairly often but I don't need to write to the SD card that often. I would like to sample every minute (possibly even more often), save that data, average the captured data for a 1 hour period and then write...

Really nice article. Have used your products and really liked them. I appreciate the ready sharing of information and documentation and your support through the forum. Well done.

Good morning. It would be best if you used the "code" tags to bracket your working sketch, it does make it easier to peruse. But, what are the connections that you are using? You should have SCL connected to pin 19 and SDA connected to pin 18 with your VCC connected to the 3.3V pin at the...

Hello the list. My bad. An accidental brush of the mini USB connection resulted in normal function of the sensor and correct seeming temp and Rh readings. It appears that the usb connector on my Teensy has become worn and the mechanical/electrical connection is sometimes faulty. A slight...

Good morning all. I am working with a HTU21D humidity and temperature sensor, the same as SparkFun URL https://www.sparkfun.com/products/12064 I am using the i2C communication path and there are no other devices/sensors connected to my Teensy 3.2. I am using Windows 10, Arduino 1.6.8 and...

I had a similar issue last evening and it was most frustrating. I had set my Teensy 3.2 up connected to a USB hub which also had my BlueTooth dongle for my keyboard and mouse (Logitech set). Once I took the Logitech bluetooth dongle out of the same usb hub and used another usb port set so that...

The fix for this seems to be the same as from message: https://forum.pjrc.com/threads/31926-Teensy-3-2-Read-Test-(DS1307RTC)-broken?highlight=DS1307RTC #ifndef DS1307RTC_h #define DS1307RTC_h #include <Time.h> #include <TimeLib.h> // library interface description class DS1307RTC #include...

error with DS1307RTC and new Teensyduino 1.28 beta #1 Hi Paul. Fresh install of Arduino 1.6.8 and Teensyduino 1.28 beta #1. Windows 10 64 bit. Working with DS1307RTC and get the following compiler errors: In file included from C:\Program Files...

Hi defragster. I actually wrote most of the complete program but had to come back to this area because I have screwed up with somehow. I did include a link for the calc_buttons.h file but perhaps not with normal messaging protocol, you will find the link for it at the bottom of the sketch code...

Hello HWGuy. The pcb you show in the bottom right hand quadrant of https://dl.dropboxusercontent.com/u/2486346/t3a/ap/all.jpg looks very interesting. Are you producing those? If so, how do I acquire several? Best

Good morning. I feel this is likely a silly logic issue I can't see my way out of but after several days of not solving it I think I am "blind" to the root problem and can't make this work. I am working on a sketch to set the RTC on the Teensy. Right now I have fields for day, month, year...

While I cannot contribute to the main discussion topic I would like to express my interest in anything to with HPLC. I operate and Agilent 1100 HPLC unit with DAD detector and the current Agilent Chemstation software. This is used for identifying dyes, pigments and other aspects of museum...

Ah, I will go back and work on that. I did read that email thread. I think the download for your two files is no longer working, but I could copy your code from the email thread. Before I do that is there an updated version of your modifications with the "com" function? Thank you

Hi mxxx. Yes, I did try the u8glib. Eventually I worked through all 1306 as well as 1106 just for the "fun" of it! I couldn't find any u8glib which worked for this particular display. The odd thing is that I found a SeedStudio driver which worked to a decent degree but still I think with...

Ah, just found an URL for my display. http://www.electrodragon.com/product/1-3-12864-blue-oled-display-iicspi/ and it is the I2C version. In the description they say: Drive IC is SSH1106, easy to find arduino library for it. (Compatible with SSD1306, but display start address at 0x02) RAM of...

Hi Brad, I wondered what the difference was betrween the 1306 and the 1106 versions. I downloaded the suggested library and tried it. Actually, same results as before. The sketch icons are showing in a bar at the top of the display and for only about 1/5th of the display height instead of...

Good day the list. I have one of those eBay 1.3 inch OLED displays (128 x 64), i2C with no reset pin (seems to have been factory modified as for the Haltec reset fix). I am using a Teensy 3.2 with 4.7K pullup resistors between 3.3v and ACL(19) and SDA(18). The adafruit SSD1306 128 x 64 i2C...

Thank you for the clarification. The display is much better working very well in bright room light. Best

I wired the LED through the 100 ohm resistor to the Vin (3.6 to 6.0 volts) terminal and the resulting display brightness if very much better. I will field test today. If the display needs to be more readable in areas with more ambient light I will change the display background color(s)...

Thank you Paul, didn't think of that. Will try that tonight. Best

Hello the list. I have completed my portable meter project and put in a case. Field testing shows that the ILI9341 wired as suggested in the PJRC store page and using a 100 ohm resistor from VCC to LED is bright enough in low light indoor situations but unreadable in higher light situations...