Parallax recieved a $1,250.00 donation from Linda Gracey, mother of Parallax’s Ken and Chip. Linda made the donation in memory of her late husband Charles M. Gracey (Chuck). Chuck retired as a chemical engineer in 1995 and spent the next 23 years of his life being a supporter of Parallax — helping out at trade […]
An anonymous donor from the east coast of the United States recently sent us a $1,200.00 check “for the kids” with a letter request that we ship hardware to students who can’t afford it and exhibit the potential or interest to develop new skills. The donor was likely inspired by the presence of a 10-year-old […]
Description This Quick Byte consists of three Serial Peripheral Interface (SPI) examples using the MAX7219 LED Display Driver and the 8-Digit 7-Segment Digital LED Display (#26972). The objects show SPI in three different ways: using Spin2, PASM, and smart pins. A video entitled “Propeller 2 Live Forum: Spin2 Beginner Series SPI Interfacing the MAX7219 with […]
Description The Propeller 2 can manage multiple UARTs simultaneously and be an aggreator of many serial inputs. This driver is useful for interfacing with multiple serial devices (GPS, sensors, etc) functioning in parallel. This application uses smart pins and only one of eight cogs in the Propeller 2. This example shows how 8 full-duplex UARTs […]
Description The jm_servo_multi.spin2 simple servo driver that uses P2 smart pins to create the servo signal on up to 32 outputs. A second instance of the object may be started to drive 32 more servos, or 64 total. This object uses the Propeller 2 smart pins and leaves all seven remaining processors open for other […]
Description The DS3231 is a low-cost, precision I2C real-time clock (RTC) with an integrated temperature-compensated crystal oscillator (TCXO) and crystal. The Parallax DS3231 AT24C32 Real Time Clock Module includes a battery backup, and maintains accurate timekeeping when power to the module is interrupted. This device was demonstrated extensively in the JonnyMac Beginner Series for Spin2 […]
Description The jm_dhtxx.spin2 object wakes and reads data from the DHT11, DHT22 and CM2302 Humidity and Temperature Sensors. In the top file, configure the S_TYPE for the sensor you are using (DHT11 or DHT22). The CM2302 should be set as DHT22 since they use the same communication protocol. con #true, ON, OFF #false, NO, YES […]
Description The WS2811/WS2812/WS2812B, WS2813, and SK6812x (or NeoPixel) are RGB LEDs with a tiny controller managed through a single IO. These are available in many form factors including flexible tape, string lights for trees, round and square PCBs, flexible panels, and water-tight strips. The LEDs are available in 5 VDC and 12 VDC formats; power […]
Description The jm_analog_in_multi.spin2 object supports up to 32 ADC channels that can measure from 0 to 3.3v. The object is easily configured with a base pin, channel count, and low and high scaling factors that provide meaningful output from ADC channel readings. For example, using 0 and 3300 for the scaling factors provides the application […]
Description Connect the boards together as shown and double-check the correct orientation of each item. Connect a suitable 5V power source and ensure the boards are powered on by observing the green VIN light on the WiFi module. Using a laptop, tablet, or other computer with wireless networking capability, browse for available networks. You should […]
