HPDL Four Character Smart Alphanumeric Displays. Four Character Smart Alphanumeric Displays Technical Data. Features. Smart Alphanumeric Display. The HPDL and are smart, four character, sixteen- segment, red GaAsP displays. The. HPDL has a character height of mm (“). The. Home > Automation & Control Gear > Panel Meters & Components > Miscellaneous. HPDL LED DISPLAY. RS Stock No. ; Brand Hewlett.

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And the really cool thing h;dl that I made some swag by myself and I feel proud of it: By the way, one more thing: According to the datasheet – up to mA 24116 it’s a lot for a battery powered device.

The most important thing is to set correct clock fuse for 32, crystal and to disable JTAG. Then I add 8 secs to the time variable. All babies today love teething on their parents phones.

In the beginning I thought it will come quiet ugly and I’ll need to make a case for it, but now I like how it looks. Let’s start with PCB. And it works very well! Sending feedback, please wait Those yellow traces should be connected by hpl wire.

Unfortunatelly, uc barely fits in the middle of the display’s back and some pinout traces of display and uc touches where they mustn’t.

Similar projects worth following. I used to ask family and friends to buy one as a gift for my b-day or Christmas, but they are pretty supersticious about it it’s said that a given clock shows you the time till your death. Thank you for your feedback. Add a battery holder and upload the firmware. I solved the problem by not keeping it constantly on like mobile phone screens – they are turned on only when user is using them.


Below there are contacts to attach a programmer. You should Sign Up. When the display is on, you have to wait 3 secs and then you can set the time. By clicking the accept button below, you agree to the following terms. The display goes off after 16s when any button was pressed. I’m very satisfied with the result.

HPDL 2416 16seg 4.1 mm alphanumeric display red led dot-matrix display

Display shows time only you press the button on the side which sets hours or minutes. It easily firt into arduino pro mini.

One of the requirements is that it be a “connected” device. Holes between C1 and C2 are 4216 I took it from some old device I can’t even remember what was that. Sometimes you can even buy this type of battery from the store when it has less than 3 V left.

DL Intelligent LED Display using Arduino

Here is the link: The traces which should not touch are marked 22416 white color. Become a member to follow this project and never miss any hppdl.

Become a member to follow this project and never miss any updates Hpd a member. I wanted to cut off the power totally so I decided to power it from ATmega16 pins directly.

  LM385 2.5V PDF

The foregoing information relates to product sold on, or after, the date shown below. You should add a description of how it’s connected and why that’s meaningful to the project in order to have the best chance with the judges. It’s available at my github, I’ll just explain a little bit. View all 9 components. Sign up Already a member? Then you have to wait 2 s till you can set the time.

The display has one drawback – It uses pretty much current.

HPDL watch

Unfortunatelly, these displays are getting extinct like nixies are. The product does not contain any of the restricted substances in concentrations and applications banned by the Directive, and for components, the product is capable of being worked on at the higher temperatures required by lead—free soldering.

Already have an account? Save to parts list Save to parts list. When testing the display, I’ve noticed that when it is blanked it still drains about 1mA of current at 5V. Add to a parts list. Display falling tetris blocks on a oled screen made into an ear ring. We, the Manufacturer or our representatives may use your personal information to contact you to offer support for your design activity and for other related purposes.