Update README.md

First thoughts

README.md

@@ -1,3 +1,47 @@
 # mesh-plans
 
 Meshtastic / Meshcore research and plans.
+
+## Basic plan
+
+I want to build an off-grid, movable, solar-powered station for LoRa based mesh networking and ADS-B receiving.
+
+### Functional requirements
+
+The system should be able to:
+- Receive and decode 1090MHz ADS-B signals
+- Send and Receive 868MHz LoRa Signals for Mesh networking
+- Be maintainable from a remote position
+
+## Proposed parts
+Not quite yet a BOM
+
+[Raspberry Pi Zero 2, for running dump1090 and remote firmware updating](https://www.raspberrypi.com/products/raspberry-pi-zero-2-w/)
+
+[Waveshare LTE Hat, cellular service](https://www.waveshare.com/wiki/SIM7020E_NB-IoT_HAT)
+
+[2x LoRa Radio, One for meshcore, one for meshtastic](https://wiki.seeedstudio.com/xiao_nrf52840&_wio_SX1262_kit_for_meshtastic/)
+
+[Solar Panel](https://www.offgridtec.com/offgridtec-olp-30w-v2-solarpanel-23v-schindeltechnologie-perc.html)
+
+[Charge manager](https://www.offgridtec.com/offgridtec-pwm-pro-laderegler-12v-24v-10a-usb.html)
+
+[Battery, lead-acid for lower maintaince](https://www.offgridtec.com/offgridtecr-agm-17ah-20hr-12v-solar-batterie-akku-extrem-zyklenfest.html)
+
+[Mounting pole](https://www.asat.nl/Tegelvoet-30x30-cm-Demontabel)
+
+[Filter](https://nl.aliexpress.com/item/1005007903713124.html)
+
+[Cheap SDR Stick](https://nl.aliexpress.com/item/1005006820579602.html)
+
+[Basic 1090MHz outdoor antenna](https://nl.aliexpress.com/item/1005010353597664.html)
+
+
+## Software BOM
+
+| What              | Why                                    |
+|---------------	|------------	                         |
+| Raspbian Lite     | Basic OS                               |
+| Dump1090          | Decoding ADS-B                         |
+| Wireguard         | VPN Tunnel for remote management       |
+| PlatformIO        | Building and flashing the LoRa nodes   |