correct mistake at README

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Rotzbua
2015-05-19 17:53:45 +02:00
parent c460250b74
commit 27211e0f23

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@@ -97,38 +97,38 @@ Troubleshooting
* **I don't get input from reader** or **WARNING: Communication failure, is the MFRC522 properly connected?**
1. Check your connection, see `Pin Layout`_ .
2. Check voltage. Most breakouts work with 3.3V.
3. The SPI only works with 3.3V, most breakouts seems 5V tollerant, but try a level shifter.
#. Check your connection, see `Pin Layout`_ .
#. Check voltage. Most breakouts work with 3.3V.
#. The SPI only works with 3.3V, most breakouts seems 5V tollerant, but try a level shifter.
* **Sometimes I get timeouts** or **tag/card sometimes not work.**
1. Try other site of the antenna.
2. Try to decrease distance between MFRC522.
3. Increase antenna gain per firmware: ``mfrc522.PCD_SetAntennaGain(mfrc522.RxGain_max);``
4. Use better power supply.
5. Hardware corrupted, most products are from china and sometimes the quality is really low. Contact your seller.
#. Try other site of the antenna.
#. Try to decrease distance between MFRC522.
#. Increase antenna gain per firmware: ``mfrc522.PCD_SetAntennaGain(mfrc522.RxGain_max);``
#. Use better power supply.
#. Hardware corrupted, most products are from china and sometimes the quality is really low. Contact your seller.
* **My tag/card doesn't work.**
1. Distance between antenna and token too huge (>1cm).
2. You got wrong PICC. Is it really 13.56MGhz? Is it really a Mifare Type A?
3. NFC tokens are not supported. Some may work.
4. Animal marker are not supported. They use other frequency.
5. Hardware corrupted, most products are from china and sometimes the quality is really low. Contact your seller.
#. Distance between antenna and token too huge (>1cm).
#. You got wrong PICC. Is it really 13.56MGhz? Is it really a Mifare Type A?
#. NFC tokens are not supported. Some may work.
#. Animal marker are not supported. They use other frequency.
#. Hardware corrupted, most products are from china and sometimes the quality is really low. Contact your seller.
* **My mobile phone doesn't recognize the MFRC522** or **my MFRC522 can't read data from other MFRC522**
1. Card simmulation is not supported.
2. Communication with mobile phones is not supported.
3. Peer to peer communication is not supported.
#. Card simmulation is not supported.
#. Communication with mobile phones is not supported.
#. Peer to peer communication is not supported.
* **I need more features.**
1. If software: code it and make a pull request.
2. If hardware: buy a more expensive like PN532 (supports NFC and many more, but costs about $15)
#. If software: code it and make a pull request.
#. If hardware: buy a more expensive like PN532 (supports NFC and many more, but costs about $15)
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