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| 1 | 06 Feb 2012 07:02 AM Zoran From: Vrbovec,Croatia |
| Hi Bogdan.I made few clocks and they work great.Now I would like that clock shows only temperature without time.But time can't be set under 2 seconds.Is there some line in hex where this could be done.For now i set time to 2 sec and temp to 59 sec. Well I could live with that,but I noticed a bug.When temperature is below zero, - (minus) sign dissapears after few dozen sec.Then reapear after time changes back to temp.Maybe,if you have time,would like to fix this bug and make hex for thermometer? |
| 2 | 22 Oct 2011 08:49 PM Misa From: Zrejanin, Vojvodina |
| Hi Bogdan. I made 3 clocks from your shematic. First one was with 7-seg displays and it works perfectly in my car. The second one I made it for my friend (it was a birthday gift), but I made it in bigger size with 5mm LED, something like your with 14 LED. And now I working on this third one that is with RGB LED and changing color. Problem I have is that chip will not start working. I suspect on low power during start, I use 16f628. If I put 16f84, is there a chance to work? Sorry for bad ... Response: Hi Misa, I missed answering you. Thank you for you feedback! I didn't try RGB leds on this clock. I hope you finally got it up and running. As for those other two: that's cool!  Regards, Bogdan |
| 3 | 18 Oct 2011 04:34 PM Steven From: U.K. |
| Excellent project. Thank you very much for sharing with everyone. I particularly like the calibration function for the time precision and the configurable temperature display. Really good work. This helped me in my project which you can see at: youtube.com/watch?v=ZQ9b and youtube.com/watch?v=7ArC Thanks again Response: Great project!  I saw it when you wrote this is my guestbook. I was busy with other things and I don't know if I answered you in any way. I saw it on youtube. This is a great clock you made there. I'm glad you find it useful and implement it in an aurora clock. Thanks for the feedback! Bogdan |
| 4 | 09 Oct 2011 04:15 PM Dan Vanca |
| Felicitari pentru ceasul proiectat: un exemplu de cum se face ceva bun dar simplu in acelasi timp. Schema simpla minimala dar cu rezultate excelente. Am facut ceasul tau in patru variante: de camera de perete si doua ceasuri publice. Toate merg perfect. Le poti vedea pe SITE-ul meu danvanca.ee-media.org sau daca vii pe la Corabia! Inca o data FELICITARI si la mai multe !! Response: Multumesc Dan pentru acest mesaj. Din pacate a ajuns in categoria SPAM din cauza ca a continut adresa de la site-ul tau. Nu am verificat decat acum daca totul merge bine cu acest guestbook si am investigat si posibile atacuri catre acest site. Ma bucur ca ti-a fost de folos si ca ai reusit sa-l faci. In viitorul apropiat voi face o pagina separata pentru ceasul care foloseste 14 leduri/segment. Mi-a placut ceasul tau de exterior . L-am vazut pe site-ul tau, foarte frumos  Numai bine, Bogdan |
| 5 | 08 Sep 2011 07:21 AM Saif From: India |
| I didn't tried this, but looks interesting to me. 4 transistors and 12 current limiting resistors could have been omitted if you change your software to drive 7 Segment LED with PWM and charliplex. Response: Hi Saif, Sorry for the late response, I had lots of questions in my email box and forgot about you. You are right, but then there are two problems. One of them is that I have to change the whole code. The other one is that you could not use bigger or grouped leds using different power voltages. You eventually could, but you will have to change the schematic. My schematic is pretty common and needs little changes for many different common already-multiplexed displays. But I saw the charliplex idea and is great. Thank you for the tip. Bogdan |
| 6 | 15 Aug 2011 05:28 PM toni From: Greece |
| i ' m new on pic and excuse me for my question, but why you have two voltage at schematic 16F84 (5V,3V) and 16F628 (5V,4.5V) which one i give on my board. if i give 9V i have problem? Response: Hi Toni, There are two voltages because one of them is from the battery backup. PIC16F84 will work with a 3V battery but PIC16F628 will need 4.5V minimum power supply which can be achieved by using 3 x 1.5V batteries. Eagle schematic specifies whether you must connect to 5V/battery or only to 5V. This is necessary for the circuit to know when main power is off. I did this by connecting RA0 only to the main power. You cannot put 9V instead 5V or instead battery backup. Most probably you will burn your pic. However, I didn't try this but still I don't recommend. The datasheet says 6.5V max. You can use a voltage regulator from 9V to 5V. Regards, Bogdan |
| 7 | 16 Jul 2011 06:18 PM David Dumas From: Canada |
| Hello Bogdan, The projects work perfectly. Thank you very much for your good advices. The problem was with some of my 7 segments not working correclty. All is fixed now. Very nice project. Keep up the good works. Best regards Response: I'm glad you finally got it working! Thank's for feedback! Bogdi |
| 8 | 15 Jul 2011 06:09 PM David Dumas From: Canada |
| Hello Bogdan, I made the circuit worked. I bought 330 PF instead of 33 PF for the oscilator. I didn't have 33PF so i putted 27PF. Some of the 7 segments does'nt light up. Do you think it's because of that ? I checked all the continuity on the breadboard and it's good. All the led on 7 segments light ups when i put 2V on each pin. Thanks for answering. I'm getting there.If it works perfectly, i will make the pc board with Kicad and put the project clos by the front door with the DS18B20 outside. |
| 9 | 15 Jul 2011 03:42 PM David Dumas From: Canada |
| Can you tell me what is your e-mail address please. Sorry for the english, i am canadian but french speaking. It's okay for the programmation and the connection on the breadboard are good also. I have tested all the continuity. When i power up the breadboard, nothing happens. When i touch the 4MZ crytal, i get readings on some 7 segments but nothing like a proper number. I did not find bat43, so i use 1n4148. Someone told me it's the same thing.Thank you for everything. |
| 10 | 15 Jul 2011 12:11 AM David Dumas From: Canada |
| I made the project on a bread board. I double checked everything to make sure the circuit is well mounted but unfortunately it's not working. I read the readme.txt file and it say's i have to load ee (.mch) file into the pic. With my programmer i only have the option to import hex file. How do you load ee into the pic ? I use a PIC16F84A and common anode 7 segment. I hope you can help me on this one because i realy want the project to work. Thank you. Response: Hi David, The MCH file is only used if you want to recompile the project. The HEX files I made already contains the EE section @ :10426000 and :10427000 lines. Your programmer should display an EE section when you load HEX file into it. This section should contain data instead FF all the way. If the EE section (from your programmer) is filled with data (other than just plain FF) then the programmer is ok, should programm the pic with EE also. If you double check your connections and you are sure they are good, I can only think of a broken oscillator or power source problem. Another important thing is reset button connections, if you say nothing is working maybe the device stays in reset if connected to ground through a bad resistor. Write me @ borcaAPPLE_bn yahoo (remove the fruit from the address) if you still have problems. Regards, Bogdan |