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Observe polarity!
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Use reliable power supply
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Read the User's manual
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We are ready to help
Polarity!
Always check power supply polarity when making all the connections. The module will be permanently damaged after such situation. Damage caused by connecting M-On to the cross-poled PSU will not be covered by the warranty!
Power supply unit
Use good, stabilized PSU only. Please make sure that it's Amperage rate covers all consumers such as relays. Also PSU must be able to filter most surges, for example when you are controlling inductive loads.
RTM!
Please read the manual before contacting the support. Please respect the time of yours and ours.
To the rescue!
Still need some help? We can't leave our costumers without support Contact us, and we'll answer in a plenty of time.
Also please understand that we can't help you much with 3rd party devices configuration.
"GND"
Connect to the negative output of your PSU.
Temperature sensors
1-wire (3w mode) bus for DS18b20.
16 bit PWM
two PWM channels, 1 logic level is 3.3V. Maximum output current is 20mА.
6 inputs/outputs
Maximum current is 20mА, logic 1 is 3.3V.
"Mirror" port
'Vin', 'GND' and 6 IO ports (same with usual ports). Used for such situations where you need to use 2.54 pitch connector or make all commutation in the front of the module.
10 bit ADC
Analog input. Measures 0-3.3Vdc
DHT-22
Popular and widely available humidity sensor can be used with "humiditystat" feature.
"Vin"
Connect to the positive output of your PSU. Only DC current of 5-26V
DRCA add-on
with ULN2003 on-board. Used for driving "heavy" (up to 500mA) and unductive loads, such as relays, solenoids etc. Sold separately!
Reset pins
Short those before powering module to make the reset. More information is in User's manual.
Relay-module
"HIGH level trigger" relays can be connected directly.
For "LOW level trigger" it's recommended to use DRCA. Make sure that the coil Voltage is equal to PSU's one.
Generic relay
Any relay with coil of up to 500mA can be connected with DRCA or with additional transistor.
PC motherboard
With DRCA you can emulate power and reset buttons function to power-on and reset PCs, servers, mining rigs etc.
DS18B20
Temperature sensor's bus, recommended wire is twisted pair of 30-40m overall length. All sensors are in parallel, mixed topology is possible.
4pin FAN
Such PWM fans can be controlled without any additional hardware. Make sure that the ground of M-On and FAN is common.
Servo
You can connect up to 2 servos to the module. Make sure that your PSU is strong enough to drive servos without voltage surges.
Pinout
Point to colored circles to read more info.
