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2nd version done and ordered
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@MaxBaex MaxBaex released this 30 Jan 14:17
· 9 commits to master since this release
v2.0
f7b3e9d
  • Designed for a sleep current around 6 to 7 uA.
  • ESP32
  • RFM95 Lora Module
  • 868MHz PCB antenna, can be cut off and replaced by an SMA connector
  • AA size lithium battery driven: (LS14500 Lithium-Thionyl-Chlorid or LifePo4 possible)
  • Boost converter to supply sensors with stable 5V. Can be switched off for low current sleep mode
  • External connector for Onewire, analog inputs and I2C including ESD protection with very low current TVS diodes
  • Sensing battery voltage. Can be disabled for low sleep current
  • Red led for signaling activity
  • Mechanical switch to select battery of external power supply
  • Separate removable pcb section with wide range power supply 5 - 25V, USB-C connector and USB-UART adapter for programming
Assets 2
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