What power supply are you using to power your arduino? Is it USB, or what?You tested the voltage with a volt meter ?
You have a problem with power, if you are reading 4.3 volts where the 5 volts should be.1. Can you try a different USB power source, and/or cable ?2. Do you have other loads on the arduino that may be drawing down on the 5V line?3. If you plug in your other arduino board to that USB, what voltage does it read?
I use a 5 V DC power supply connected to VIN now and got stable conditions on the shield.
I am having a hard time keeping up. First there was a LCD problem with IDE 1.5.4Then the LCD works on another arduino board.Then your arduino had only 3.3 volts on the 5 volt pin.Now you get Compile errors when you use a RTC shield.Lets slow down. The last thing I mentioned was that you had a problem with your power supply ( 5v). Have you got that fixed yet.You replied QuoteI use a 5 V DC power supply connected to VIN now and got stable conditions on the shield.. I don't really know what that means. Do you read 5.1 Volts on the 5volt pin now?
I don not have a Yun.Is this diagram correct for the Yun (eg, D7 is now handshake)?http://forum.arduino.cc/index.php/topic,189755.0.htmlThere is no D7 or D8 etc. anymore?
You will need the LeoShield if the shield you are considering uses any of the following pins which are from the older style IO pin mapping.D11 (SPI)MOSID12 (SPI)MISOD13 (SPI)SCKA4 (I2C)SDAA5 (I2C)SCL
I did not know about the need for the "LeoShield".I checked and found this infoQuoteYou will need the LeoShield if the shield you are considering uses any of the following pins which are from the older style IO pin mapping.D11 (SPI)MOSID12 (SPI)MISOD13 (SPI)SCKA4 (I2C)SDAA5 (I2C)SCLI don't think your lcd shield use any of these.I have a leonardo, and run a lcd shield on it with no problems. BTW, what did you have to do to get your voltage up ?
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