This is a downstream E-blocks peripheral module, designed to be controlled by one of the upstream E-blocks processing boards which are available in a variety of MCU/CPLD architectures.
The E-Block Quad Channel Relay Output Board was designed to switch four relays on and off as a direct response to the low voltage input of a processing E-blocks board. This in turn allows you to switch multiple devices (e.g. motors) simultaneously.
It creates an interface between an upstream E-block and apparatus operating at a higher voltage. Each of the PCB-mounted relays is rated at 12V/6A DC and contains a 400Ω coil. (The AC rating is 250V, but as this module is not enclosed, it could be very dangerous to use it with high voltages such as from power mains.)
E-Block Quad Channel Relay Output Board Features
- Provides the capacity to operate two circuits at different voltage levels.
- Provides the ability to operate up to four devices (e.g. motors) at varying speeds.
- Employs LEDs for instantaneous acknowledgment of relay setting.
- Choose High Nibble or Low Nibble.
- Compatible with upstream E-blocks operating at 3.3V.
E-Blocks Overview E-Blocks are small circuit boards each of which contains a block of electronics that you would typically find in an electronic system. Each E-Block performs a separate function as either an input sub-system, an output sub-system, an input/output sub-system or a processing sub-system.
E-Blocks can be put together to form a variety of systems that can be used for teaching and learning electronics, and for the rapid prototyping of complex electronic systems.
Each E-Block has one or more 9-way D-type connectors that provide up to eight input/output lines and a ground line. These D-type connectors allow connection between E-Blocks to be made in buses of multiples of 8 lines, just like a real electronic system. Power is routed separately to those E-Blocks that need it.
Processing E-Blocks based on PIC, dsPIC, ARM or AVR microcontrollers control the whole E-Blocks system. Processing E-Blocks provide up to five input/output ports with up to eight lines per port.
Please see the E-Blocks Category for a list of available components. For more details on E-Blocks, see the E-Blocks User Guide (in English, French, German and Spanish) or watch the Introduction to E-Blocks video.
E-Blocks Relay Board Resources
- EB038 User Manual
- Test Routine (requires EB006 and PIC16F877A MCU)
- Different version of Test Routine (in both cases, note that the instruction to check that a "PIC18F2455/16C745 is inserted into single horizontal 28 pin DIL socket" of the EB006 is for older versions of the EB006 which had a removable controller chip in a socket; new versions have a PIC18F4455 in TQPF soldered on board)