Relays are indicated by the notation Rn.m (or sometime just Rm), where n is the shield index (0, 1, or 2), and m is the relay index, from the minimum to the maximum for that configuration. For example, on the ARDBOX 20 I/Os Relay HF+ shield, the relays range from R1 thru R8; the M-Duino 19+ shield relays range from R0.1 thru R0.8.
These products offer Relays.
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- Arduino PLCs, ESP32 PLCs, PLCs
10 I/Os Programmable Logic Controller
- $115.14 – $128.34
- Select a Controller option and an I/O option from the drop-down lists below.
- Select options
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- Arduino PLCs, PLCs
20 I/Os (ARDBOX) Programmable Logic Controller
- $170.10 – $301.57
- Select an I/O option and an Additional Communications option from the drop-down lists below.
- Select options
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- Arduino PLCs, PLCs
M-Duino Programmable Logic Controller
- $246.96 – $665.46
- For detailed information about each of the M-Duino PLC options, click on the appropriate tag below. Select an I/O option and an Additional Communications option from the drop-down lists.
- Select options
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- PLCs, Raspberry PLCs
Raspberry Programmable Logic Controller
- $290.61 – $720.87
- For detailed information about each of the Raspberry PLC options, click on the appropriate tag below. Select an I/O option, an Additional Communications option, a RAM option, and an Internal Fan option from the drop-down lists.
- Select options
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- Arduino PLCs, PLCs
Spartan Programmable Logic Controller
- $118.80 – $228.00
- Select an I/O option from the drop-down list below.
- Select options
