https://github.com/devel0/iot-atmega328p-eth
minimal setup to debug atmega328p with enc28j60/w5500
https://github.com/devel0/iot-atmega328p-eth
atmega enc28j60 iot w5500
Last synced: 11 months ago
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minimal setup to debug atmega328p with enc28j60/w5500
- Host: GitHub
- URL: https://github.com/devel0/iot-atmega328p-eth
- Owner: devel0
- License: mit
- Created: 2018-10-11T10:26:46.000Z (over 7 years ago)
- Default Branch: master
- Last Pushed: 2018-12-30T00:23:41.000Z (over 7 years ago)
- Last Synced: 2025-04-02T00:37:37.963Z (about 1 year ago)
- Topics: atmega, enc28j60, iot, w5500
- Language: C++
- Homepage:
- Size: 807 KB
- Stars: 0
- Watchers: 2
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- License: LICENSE
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README
# iot-atmega328p-eth
minimal setup to debug atmega328p with enc28j60/w5500
- [prerequisites](#prerequisites)
- [config](#config)
- [wirings](#wirings)
- [sketch size](#sketch-size)
- [usage](#usage)
- [security considerations](#security-considerations)
## prerequisites
- software
- install [vscode arduino](https://github.com/devel0/knowledge/blob/master/doc/vscode-arduino.md)
- install [UIPEthernet](https://github.com/UIPEthernet/UIPEthernet)
- hardware
- [atmega bare](https://github.com/devel0/iot-atmega-bare)
- [enc28j60](https://www.microchip.com/wwwproducts/en/en022889) module or w5500
## config
- tune your network config MACADDRESS and MYIPADDR, MYIPMASK, MYDNS, MYGW if want static initialization
- choose between one of ethernet module type ( enc28j60 or w5500 )
## wirings
schematics here for w5500 [here](https://easyeda.com/editor#id=|7506cd41b26244d4b4f3a225eba49999) just skip sd card; if use enc28j60 power it from 3v3 setting JP2 to link VCC-3V3
## sketch size
*serial debug included, static ip*
**ENC28J60 (udp disabled)**
- `UIP_CONF_UDP=0` in `UIPEthernet/utility/uipethernet-conf.h`
```
Sketch uses 13364 bytes (40%) of program storage space. Maximum is 32768 bytes.
Global variables use 833 bytes (40%) of dynamic memory, leaving 1215 bytes for local variables. Maximum is 2048 bytes.
```
**W5500**
```
Sketch uses 12162 bytes (37%) of program storage space. Maximum is 32768 bytes.
Global variables use 317 bytes (15%) of dynamic memory, leaving 1731 bytes for local variables. Maximum is 2048 bytes.
```
## usage
```
telnet 10.10.2.5 1000
hi
```
- check serial `ctrl+shift+p arduino open serial`
```
received message : hi
```
## security considerations
- atmega web server with **NOT** crypted https: thing can faced to internet through a [nginx proxy](https://github.com/devel0/docker-nginx) with a valid certificate encryption
- if write ( acting or activators ) present in a internet face must present an api token ( and https of course )
- in LAN a paranoid setting suggest you have a router with firewall that allow access to the thing only to authorized frontends