-
The Pro Micro is similar to the Pro Mini except with an ATmega32U4 on board. The USB transceiver inside the 32U4 allows us to add USB connectivity on-board and do away with bulky external USB interface. This tiny little board does all of the neat-o Arduino tricks that you’re familiar with: 4 channels of 10-bit ADC, 5 PWM pins, 12 DIOs as well as hardware serial connections Rx and Tx. Running at 16MHz , this board will remind you a lot of your other favorite Arduino-compatible boards but this little guy can go just about anywhere. There is a voltage regulator on board so it can accept voltage up to 12VDC.
-
Programmable 4-20mA Current Signal Generator with LCD Digital Display Back Light E-983 Display Modes: 4-20ma Current Value, 0-100 (%) Percentage, 0.0-50.0 (Hz) Output Current Signal: Default 4–20ma, Max. 3ma To 21ma Power Supply Voltage:15V To 30V Sampling Resistor:10Ω—500Ω Display Precision:0.01ma Max. Output Precision:±0.5% VOLTAGE-24 V
-
The Mega2560 Shield makes it easy for you to design custom circuits. You can solder parts to the prototyping area to create your project, or use it with a small solderless breadboard to quickly test circuit ideas without having to solder. It's got extra connections for all of the Arduino I/O pins, and it's got space to mount through-hole and surface mount integrated circuits. It's a convenient way to make your custom circuit and Arduino into a single module.