AstroCAN Coin Slots Plus – NextGen Astromech

Connectors

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

AstroCAN Bridge Connectors
Hotspot	Function	Description
1	I2C Connector	I2C Port for connecting other dome modules.
2	Free GPIOs	reserved for future use
3	Power Supply, 5.0V	Power Supply, 5.0V. Important: 5V ONLY! Otherwise you will damage your board.
4	Buzzer	Pin Header for small buzzer or other acoustic feedback device.
5	UAL-Connector	Connect your passive UAL LED Module.
6	UAL Switch Connector	Connect your UAL switch to indicate, when to start upload sequence animation.
7	Serial Connector	In DOME-Mode: – Connect RXD to MarcDuino MP3 pin – Connect TXD to MarcDuino Master RX In BODY-Mode: – Connect RXD to ATMEGA Serial2 TXD – Connect TXD to MP3 Trigger RX
8	CAN-Bus Terminator	CAN-Bus Terminator. See CAN Termination for Details
9	CAN-Bus	CAN-Bus Pin Header
10	CAN-Bus	Can-Bus Screw Terminal. Same as CAN-Bus Pin Header
11	JTAG-Connector	Debugging Interface, Developers only
12	Reset Button	Press to restart module
13	USB-Connector	Connector for flashing and configuring your device
14	Pair / Boot Button	Hold for 3s to start ESP-Now-Pairing. Bridge module has to be connected to AstroCAN Shield / AstroCAN Brain via CAN-Bus to get paring information!
15	ESP32 Dev Kit V4	ESP32 Dev Kit V4 (in case you have to replace it…)
16	WIFI/NOW Antenna	Do not cover with metallic case etc.

JTAG

Light Configuration Commands

Use serial terminal to connect via USB (see above) to AstroCAN-Module. If your browser supports “Web Serial”, you also can use the terminal available in the Firmware section. Communication speed ist 115200 baud. The following commands are available for configuration and management.

Note: The light configuration parameters differ from the common AstroCAN syntax. This is due to compatibility to the Arduino Nano board with less memory.

Light Configuration Command Structure

/_module_/_param_/_value1_/_value2_/_value…_

Modules

CS – CSL

UA – UAL

Parameters

CO – Base Color, 3 separate Values for R/G/B, 0-255 each

BR – Brightness, 1 Value 0-255

AN – Animation Number, 1 Value 0-255

AS – Animation Speed, 1 Value 0 – 65535

EF – Effect, 1 Value 0-255

ES – Effect Speed, 1 Value 0-65535

Examples

/CS/BR/50 – CSL, Brightness 50 (0-255 for AstroPixels)

/UA/CO/255/0/0 – UAL, Base Color Red (R/G/B)

:

AstroCAN Commands

Use serial terminal to connect via USB (see above) to AstroCAN-Module. If your browser supports “Web Serial”, you also can use the terminal available in the Firmware section. Communication speed ist 115200 baud. The following commands are available for configuration and management:

AstroCAN Bridge Commands
Command	Parameters	Description	Example
/HELP	–	shows usage	/HELP
/SETTINGS	–	shows all settings stored in EEPROM	/SETTINGS
/WIFIAPSSID	AP SSID	sets the access point SSID	/WIFIAPSSID R2TOCH
/WIFIAPPASSWORD	AP Password	sets the access point password	/WIFIAPPASSWORD R2TOUCH123
/WIFISSID	WIFI SSID	sets the WLAN SSID	/WIFISSID HOMELAN
/WIFIPASSWORD	WIFI Password	sets the WLAN Password	//WIFIPASSWORD HOMELAN123
/PAIR	–	auto pair module with ESP-NOW peer (connect both modules to CAN for pairing) Pairing mode depends on Dome jumper. When in dome mode, it looks for brain/shield module. When in body mode, it looks for bridge module.	/PAIR
/NOWLMK	16 byte key	sets the local master key for ESP-NOW communication. See -> ESP-NOW encryption for details.	/NOWLMK 0123456789ABCDEF
/NOWPMK	16 byte key	sets the primary master key for ESP-NOW communication. See -> ESP-NOW encryption for details.	/NOWPMK 0123456789ABCDEF
/NOWCHANNEL	Channel	sets the ESP-NOW channel number	/NOWCHANNEL 5
/NOWSETPEER	MAC Address in xx:xx:xx:xx:xx:xx format	set ESP-NOW communication peer MAC address	/NOWSETPEER 01:23:45:67:89:AB
/NOWCLEARPEERS	–	clear all ESP-NOW communication peers	/NOWCLEARPEERS
/NOWLISTPEERS	–	list all ESP-NOW communication peers	/NOWLISTPEERS
/RESTART	–	restart module	/RESTART
/FACTORY	–	set factory settings and restart module. All EEPROM settings will also be set to default.	/FACTORY
/ACTIVATE	CAN\|CAN1\|CAN2\|NOW\|WIFI\|ENC	acticate CAN-/NOW-/WIFI-Functionality or ESP-NOW encryption. CAN1/CAN2 only available on Dual-CAN-Boards.	/ACTIVATE CAN
/DEACTIVATE	CAN\|CAN1\|CAN2\|NOW\|WIFI\|ENC	deacticate CAN-/NOW-/WIFI-Functionality or ESP-NOW encryption. CAN1/CAN2 only available on Dual-CAN-Boards.	/DEACTIVATE CAN
/NOWSET…	MAC Address in xx:xx:xx:xx:xx:xx format	set ESP-NOW module peer address	/NOWSETDOME 01:23:45:67:89:AB
/WIFIAPIP	IP-Address in xxx.xxx.xxx.xxx format	set Access Point Local IP	/WIFIAPPIP 192.168.10.1
/WIFIAPGW	IP-Address in xxx.xxx.xxx.xxx format	set Access Point Gateway	/WIFIAPPGW 192.168.10.0
/WIFIAPSN	IP-Address in xxx.xxx.xxx.xxx format	set Access Point Subnet Mask	/WIFIAPPSN 255.255.255.0
/SETBUTTON	nr color_red color_green color_blue primary_command (secondary_command)	stores command “command” in button “nr”. Sets color to “color_red” “color_green” “color_blue”	/SETBUTTON 1 0 0 255 :OP01 :CL01
/CLEARBUTTON	nr	removes stored command and color from button “nr”	/CLEARBUTTON 1
/SETCOMMAND	nr primary_command (secondary_command)	stores command “command” in button “nr”. Does not change color settings.	/SETCOMMAND :OP01 :CL01

Settings

Use serial terminal to connect via USB (see above) to AstroCAN-Module. Communication speed ist 115200 baud. The following settings can be configured (see command set above):

AstroCAN Bridge Settings
Setting	Description	Example	Config Command
MAC	MAC Address of ESP32	12:34:56:78:9A:BC	fix, not configurable
AP_SSID	Name of the access point network, the AstroCAN module opens up to get connected by apps like R2-Touch	R2TOUCH	/WIFIAPSSID
AP_Password	Password of the Access point network.	R2TOUCH123	/WIFIAPPASSWORD
WLAN_SSID	Name of the WLAN the AstroCAN module can connect to, to be controlled by other systems within that network	HOMELAN	/WIFISSID
WLAN_Password	Password of the WLAN the AstroCAN module can connect to.	HOMELAN123	/WIFIPASSWORD
NOW_PMK	ESP-NOW encryption parameter: Primary Master Key. See -> ESP-NOW encryption for details. Only change, if you exactly know, what you are doing!	0123456789ABCDEF	/NOWPMK
NOW_LMK	ESP-NOW encryption parameter: Local Master Key. See -> ESP-NOW encryption for details. Only change, if you exactly know, what you are doing!	0123456789ABCDEF	/NOWLMK
NOW_Channel	WIFI channel to be used for ESP-NOW communication. All ESP-NOW peers have to communicate over the same channel number	5	/NOWCHANNEL
CAN1_Active	Shows, if main CAN bus is active	true – activated false – deactivated	/ACTIVATE CAN /ACTIVATE CAN1 /DEACTIVATE CAN /DEACTIVATE CAN1
CAN2_Active	Shows, if secondary CAN bus is active	true – activated false – deactivated	/ACTIVATE CAN2 /DEACTIVATE CAN2
NOW_Active	Shows, if ESP-NOW is active	true – activated false – deactivated	/ACTIVATE NOW /DEACTIVATE NOW
WIFI_Active	Shows, if WIFI is active	true – activated false – deactivated	/ACTIVATE WIFI /DEACTIVATE WIFI or WIFI jumper
NOW_Encryption	Shows, if ESP-NOW encryption is active. See -> ESP-NOW encryption for details.	true – activated false – deactivated	/ACTIVATE ENC /DEACTIVATE ENC
WIFI_Active	Shows, if WIFI is active	true – activated false – deactivated	WIFI jumper set: WIFI activated WIFI jumper removed: WIFI deactivated
AP_IP	Access Point Local IP	192.168.10.1	/WIFIAPIP
AP_GW	Access Point Gateway	192.168.10.0	WIFIAPGW
AP_SN	Access Point Subnet Mask	255.255.255.0	/WIFIAPSN
CAN-ID	CAN Identifier of Module	0x7E0	fixed
Peers	Description	Example	Configuration
CAN-Resp-ID	CAN Response Identifier of Module	0x7E8	fixed
Stored Peers	MAC-Adresses of ESP-NOW communication partners	12:34:56:78:9A:BC	/NOWSET…
Live Peers on Bus	MAC-Adresses of AstroCAN modules found on CAN bus	12:34:56:78:9A:BC	conditional

F.A.Q – AstroCAN Coin Slots Plus

What is it?

The CSL+ AstroCan is the logical addition to the AstroCan system. Together with the other AstroCan modules, it integrates seamlessly into the system, with the lights controlled via sequences, offering much more than all other DPL versions currently on the market.

Additionally, it provides six extra input options for various functions.

Features

6 RGB LED stripes, configurable by user
6 Switch Buttons, configurable by user
WEB-based configuration and control
ESP-NOW Wireless Dome and Body Communication
CAN-Bus communication to all connected AstroCAN Modules
Support for Benduinos & classic MarcDuinos commands
JTAG-Live Debugging
Status Leds for serial & CanBus transmission

Best Practice – Wiring

Just add it to the CAN-Bus and Power. See Tech FAQ for additional information.

Firmware Installer

To install most recent firmware V2.5.9 connect the AstroCAN module via USB to your computer and click on “Connect” button.

Attention 1: When upgrading one module to V2.x, you have to upgrade ALL other AstroCAN-Modules to V2.x!

Attention 2: Read HowTo – Upgrade to V2.5 before upgrading!

Revision History

Version 2.5.9 (26. November 2025)

First official Release

AstroCAN Con Slots Plus

Connectors

I2C Connector

Free GPIOs

Power Supply

Buzzer

UAL Connector

UAL Switch Connector

Serial Connector

CAN-Bus Terminator

CAN-Bus