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boards:moteino [2021/11/18 21:48]
darron [Boot-loader]
boards:moteino [2022/09/01 13:07] (current)
darron [Resources]
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 input for DIO1 which may be utilised for Rx timeouts. input for DIO1 which may be utilised for Rx timeouts.
  
-On the XRobotix clone the LDO VREG has been replaced. VIN max is 6V rather than 16V and current max is 200mA instead of 600mA.+On the XRobotix clone the LDO VREG has been replaced. VIN max 
 +is 6V rather than 16V and current max is 200mA instead of 600mA
 + 
 +The board has been tested to work at 2.5V and will transmit at 
 +this frequency even with the 16 MHz XTAL, however, the boot-loader 
 +has a BOR setting of 2V7 which means it will continually reboot at 
 +around 2.9V which is as the top of the BOR range for 2V7. The ATmega 
 +and SX1276 can operate at 1.8V minimum.
 ===Pinout=== ===Pinout===
 <wrap right> <wrap right>
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 [[https://www.hoperf.com/data/upload/portal/20190801/RFM95W-V2.0.pdf|RFM95W datasheet]] [[https://www.hoperf.com/data/upload/portal/20190801/RFM95W-V2.0.pdf|RFM95W datasheet]]
 +
 +[[https://eleccelerator.com/fusecalc/fusecalc.php?chip=atmega328p|ATMega fuse calculator]]