BS2-IC from PARALLAX >> Specification: BASIC Stamp 2 Microcontroller. Buy Parallax Inc BS2-IC BASIC Stamp 2 Microcontroller, 20MHz, 2 kB EEPROM, Pin PDIP BS2-IC. Browse our latest microcontrollers offers. Free Next Day. The Parallax BS2-IC BASIC Stamp 2 serves as the brains inside of electronics projects and applications that require a programmable microcontroller.

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A priori, we had four choices for the HDA enable signal: If you are new to electronics and programming, mirocontroller recommend starting with the BASIC Stamp Discovery Kitan excellent introductory kit that comes with everything you need to get started with BASIC Stamp programming and electronics, including a BASIC Stamp 2 module, two printed booklets, and all the basic electronics components necessary to build dozens of fun projects.

Parallax BASIC Stamp 2 Module #BS2-IC

Our Stamps in Class Educational Program was designed with this module, making it a great place to learn about microcontrollers. Serial baud for programming Dimensions: Instead, a mecanism is provided which can check for some predetermined event after the execution of every PBASIC instruction.

So far, we have decoded the PWM digital output from the microccontroller into a good analog signal. That’s all bw2 is to it Both forbidden sets are skipped when the LCD is accessed sequentially, by autoincrementing. Its bx2 can easily be measured to be about This microcnotroller how the Stamp generates siwaves and dual tones. The idea will then be to use this in a carefully designed menu system, with or without the feedback of the LCD display.

If the BS2 chooses to overwrite that bit, it better be a zero.

Pololu – Parallax BASIC Stamp 2 Module #BS2-IC

Quantity Add to cart. On a multi-line LCD character display, the positions of the characters in a given line are always numbered consecutively from left to right.

So, we have a constant voltage at the output of the operational amplifier which will take a very long time to decay Unfortunately, it did not. Note that the BS2 uses push-pull on both bus lines in the relevant primitive, instead of the open-collector architecture I2C is based on. Let’s use an example to design, once and for all, a proper audio output for our microcontroller.


The HC-SR04 is a 4-pin device. The first task is to identify your board. The charge on the capacitor has essentially nowhere to go when the microcontroller pin is in its high-impedance state. Making the following procedure part of the microcontroller initialization will remedy that situation and put any interrupted interface back to its normal state after every microcontroller reset.

It works fine by presents one design flaw: Instead, the data lines sport 30k pull-up resistors, which the designer should keep in mind when sharing this bus with other devices.

The first step is to produce a steady analog voltage from a PWM signal on some microcontrolldr pin. Ultrasound sensors on SensorWiki: It’s amazing what you can accomplish with this well-proven microcontroller and its simple language. The supporting software will recognize possible input combinations from this: Overview The BASIC Stamp 2 module serves as the brains inside of electronics projects and applications that require a programmable microcontroller. Such single-pin devices are indeed available but they happen to be much more expensive than the unit reviewed here It sends an 8-cycle sound burst and measures the time it takes to receive the echo.

The first time you run that software, it microcohtroller you if you want to microdontroller the related file types to it. Because of the above considerations, this is now moot.

The logical state of either line is thus high by default and becomes “0” only when it’s actively pulled to ground by a conducting transistor.

The procedure described below should be made part of the initialization routine of any microcontroller with a reset button or any microcontroller which can be powered down independently of some devices connected to its I2C bus. That’s only two bits, but the DS doesn’t have them.

It’s the next best thing. Don’t even think of allowing the BS2 to share an I2C bus with other masters or with slaves that can “hold the clock”. For the more advanced part of the following review, a text file is provided with the source code for a tiny operating system and drivers for a parallel LCD unit and bd2 synchronous serial bus I2C connected to a real-time clock RTC with a temperature-controlled crystal oscillator TCXO.


BASIC Stamp 2 Microcontroller Module | BS2-IC | Parallax Inc

In practice, this word of caution only applies to the writing counterpart of the 9-bit read discussed above. It is able to control and monitor timers, keypads, motors, sensors, switches, relays, lights, and more. Likewise, a master can end a reading sequence by not pulling SDA low before issuing the ninth pulse. A master can drive the I2C bus with arbitrarily low speed, so a sluggish microcontroller, like the BS2, can easily be a master of an I2C bus.

I don’t recommend that shortcut at all. We’ll make our wiring compatible with one of the configurations supported by Parallax in the aforementioned specialized LCD primitives.

Serial baud for programming Dimensions: However, no part of the I2C protocol allows a slave to request termination of a read sequence once it has started.

This means the clock of the tested LCD unit is a multiple of At startup, you’re shown one of 36 “tips of the day”. Before I even touched this unit or looked at the online documentation, I had a microconfroller fun applications in mind for this initial review.

It looks as though the chip is significantly more precise than what’s described in the datasheet, but less adjustable It’s certainly not necessary to have access to an oscilloscope to use the Stamp. The minimum purchase order microxontroller for the product is 1. That circumstance can hardly happen at all on the SCL line, which most slave don’t even have the circuitry to treat it as anything but an input. Instead, the beginnings of the two lines are respectively at addresses 0 and LCD units without backlighting have connectors with only 14 pins instead of.

Before you connect your board: