Node Engraver

[Category:Nodes & network devices]]

Troubleshooting	If you are next to it: Check the display - use the right button to browse through the screens. If you are on the LAN or WiFi of the space (direct or via an SSH tunnel): [telnet] to 192.168.X.X, Connnect over [http] with your web browser Otherwise your options are: Listen to [[mqtt:///#ac/log/tussendeur mqtt] - topic #ac/log (spacedeur) Tail the syslog on the space local server after logging in over the VPN/SSH. If you have physical access to the PCB: Connect over USB; serial 8N1, 115200 -- using an battery powered laptop. Or, if powered; you must use a Galvanic USB isolator!
IP address	192.168.X.X (LAN, PoE powered)
Hardware ethernet	f4:9b:90:XX:XX:XX (wired) Address via DHCP, nog pegged.

See the Network setup overview if you want to power cycle it.

Normal operation

Swipe your card - node should beeb; then activate the stepper, hold the door open and close again. Or it will give a short intermittent deny signal to tell you the card is rejected. The log will show why.

Bypassing the node

This node cannot be bypassed on the node itself; instead use the key from the keysafe.

Trouble Shooting

Check what is on the display. The first QR code will bring you to this page. The second QR code will show you the logs in a browser. You can also telnet to the IP address shown in the 'MORE' display to see the log in real time.

See this page for more details.

Swipe ok - but does not want to open door

1. Do you see waiting for card on the display ? If so - it has not read your card (yet).
2. Did you hear one or more beebs when you swiped ? If so - your card is picked up ok ?

If you hear beebs:

1. Did you hear 3 or more beeps when you swiped ? If so - your card is not getting permission from the system.
   1. Does your personal page in mijn.makerspaceleiden.nl show that you have permission ?
2. Did you get your permissions quite recently ?
   1. Is the internet in the space up and running (as it only periodically updates its database).

The Machine does not want to accept my badge

1. Do you hear a beeb when swiping ? If so - it has read your card -- and see above issues.

If it did not beeb:

1. Did it work on the door ?
2. Does it work on any other machine ?

If so - your badge is fine - but we may have a broken ACNode or a broken reader. Report this to the mailing list - or if you know a little of IT and electronics - go to the troubleshooting section and connect to the log via your webbrowser or via telnet. Then swipe again and see what really happens.

Note that we are, at this time, not sure if these nodes will survive the welding area.

Resetting the Node

Unplug the ethernet cable in the main patch cabinet. See this page for details.

Wait at least 60 seconds until you try again (the ESP32 is quite slow & it needs to create some cryptographic date before it can start communicating over https/SSL).

Electronics

De node is PoE powered; set to 24 Volt.

Mechanics

Todo

Electronics

Blue PCB, Serial # 15:

• OPTO1 bypassed; straight to dry contact of lock
• RELAY1 bypassed; mosfet and 24V straight to solenoid
• 75k resistor for 24 volt in PoE

Troubleshooting

You can now telnet to the node. Or open a webbrowser on the node directly: http://192.168.6.29. This will you show you the log.

Before unplugging anything else, always unplug the ethernet connector from the POESP board FIRST!

Never disconnect the stepper motor wires from their screw terminals if the ethernet cable is connected / system is powered

1. Reset the node by unplugging, counting to 30, and then re-plugging the (hopefully labeled, otherwise see space network diagram) PoE cable in the server cabinet. Check the green light on the POESP board. Wait 60 seconds before trying the RFID tag.

2. If the light on the POESP board is not on/green:

• disconnect ethernet. Disconnect stepper, RFID, and buzzer/schakelaar from the motherboard. Reconnect ethernet.
• If no light, disconnect ethernet and remove the A4988 stepper driver. Reconnect ethernet.
• If no light, unplug the POESP board from the motherboard, connect ethernet.
• If POESP led lights up - troubleshoot the corresponding module/connection.
• If POESP led does not light - POESP is dead. Get a spare from the read shoe box in the lower left drawer next to the electronics table. (If that does not solve it, mail "noc", it might be a POE/network problem)
• Inform "deelnemerlijst" (all members) of the situation, and make sure there is a spare POESP with firmware in the red shoe box when you are done.

(Todo: add instructions on how to upload firmware to POESP)