The data logger consists of a simple op-amp amplifier circuit that amplifies the signal and sends it to be digitized by a PIC16F688 microcontroller, serialized, and sent to the computer’s serial port via a MAX232 serial driver: I guess you are already wondering about some of the unusual arrangmenents in the analog part in the […]
Simple expansion board for 8051SBC provides easy USB port and graphic LCD interface. I am planning to design the x86 board for some of my application that needs more computing capability. One of the features that I need to add to the x86 board is the USB port. I found the ASIC that enables 8-bit
USB & GLCD expansion board for 8051SBC using pic microcontroller Read More »
The I²C full master MSSP module is available with a number of PIC MCU models. mikroC PRO for PIC provides library which supports the master I²C mode. Important : Some MCUs have multiple I²C modules. In order to use the desired I²C library routine, simply change the number 1 in the prototype with the
The mikroC PRO for PIC provides a library for working with 4×4 keypad. The library routines can also be used with 4×1, 4×2, or 4×3 keypad. For connections explanation see schematic at the bottom of this page. External dependencies of Keypad Library The following variable must be defined in all projects using Keypad Library: Description
USB Indoor/Outdoor Thermometer (or, ‘My first USB device’) This is a simple design that demonstrates the USB peripheral on the PIC 18Fs. There are a bunch of examples for the 18F4550 40 pin chips online, this design demonstrates the smaller 18F2550 28 pin version. The PCB uses surface mount parts, but all components are available
USB Indoor/Outdoor Thermometer using PIC18F2550 microcontroller Read More »
Universal Serial Bus (USB) provides a serial bus standard for connecting a wide variety of devices, including computers, cell phones, game consoles, PDA’s, etc. USB Library contains HID routines that support HID class devices, and also the generic routines that can be used with vendor specified drivers. USB HID Class The HID class consists primarily
The UART hardware module is available with a number of PIC compliant MCUs. The mikroC PRO for PIC UART Library provides comfortable work with the Asynchronous (full duplex) mode. You can easily communicate with other devices via RS-232 protocol (for example with PC, see the figure at the end of the topic – RS-232 HW
The mikroC PRO for PIC provides a library for communication with the Microchip’s Port Expander MCP23S17 via SPI interface. Connections of the PIC compliant MCU and MCP23S17 is given on the schematic at the bottom of this page. Important : The library uses the SPI module for communication. User must initialize the appropriate SPI
Features in-circuit programmer programs flash PICmicro’s supports a rapid cycle of code/program/test prototype programmer takes power from the target circuit serial interface serial passthrough to the target Foremost Wisp628 is an in-circuit programmer. The programmer is connected to a few pins of the target PICmicro, which is programmed while it remains in the circuit.
Each of the output lines of a ‘508A microcontroller can deliver a maximum of 25mA. What does this mean? It means any device connected to the line must take 25mA or less. If it takes more than 25mA a buffer transistor (also called an amplifying transistor) must be used and this will be discussed in a
A discussion on the drive-current for the outputs of a PIC12C508A microcontroller Read More »
