From a01efcf04a07b9409ce6c523d4d27ff2618612a4 Mon Sep 17 00:00:00 2001
From: Wolfgang Hottgenroth <wolfgang.hottgenroth@icloud.com>
Date: Sun, 18 Dec 2022 23:34:47 +0100
Subject: [PATCH] docu

---
 readme.md | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/readme.md b/readme.md
index fe080b0..41dccc2 100644
--- a/readme.md
+++ b/readme.md
@@ -1,3 +1,16 @@
+# LoRaWAN Modbus Gateway
+
+## Some pictures
+![The whole setup](./docs/IMG_3854.jpg)
+
+![The device](./docs/IMG_3853.jpg)
+
+![RS485/Modbus signals on the osciloscope](./docs/modbus01.png)
+
+![Notes on schematics](./docs/IMG_3855.jpg)
+
+
+## Notes on the development environment
 * start dev environment using `startDevEnv.sh`
 * build application in container in directory `~/project` using `arduino-cli compile --fqbn=Heltec-esp32:esp32:WIFI_LoRa_32_V3 --export-binaries /home/arduino/project/sketch/`
 * flash device using `esptool.py --port /dev/tty.usbserial-0001 --baud 921600 --chip esp32s3 write_flash --flash_mode dio --flash_size 8MB 0x0 sketch.ino.bootloader.bin 0x8000 sketch.ino.partitions.bin 0x10000 sketch.ino.bin`