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Software for the Microbridge
The supplied ZIP file includes pic32prog.exe, the BASIC software to program a PIC for the Microbridge using a Micromite, plus the Microbridge HEX file.
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Firmware (HEX) file and documents for the Micromite Mk.2 and Micromite Plus
Firmware, user manuals, change log and sample C functions for the Micromite Mk.2 and Micromite Plus (v5.05.03).
The regular Micromite HEX file will work on the 28-pin DIP package chip (PIC32MX170F256B) and the 44-pin SMD chip (PIC32MX170F256D).
It's also suitable for the MicroMite LCD BackPack including V2 and V3. See the articles in the January 2015, February 2016 and August 2019 issues for more details.
The Micromite Plus HEX file will work on the 64-pin and 100-pin TQFP package chips (PIC32MX470F512H/L).
[Updated 29/01/2021]
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Demonstration software for the Micromite LCD BackPack V3
A downloadable ZIP package containing the sample BASIC source code and CFUNCTION source for the Micromite LCD BackPack V3.
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3.5-inch TFT Touchscreen LCD module with SD card socket
A 3.5in 480x320 pixel colour touchscreen display module with an ILI9488-compatible controller, as used in the Micromite LCD BackPack V3 and described in the May 2019 issue.
Uses a 14-pin header for interfacing to the display and touch sensor, plus a 4 pin (unpopulated) header for the onboard SD card holder.
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DS3231 real-time clock IC (SOIC-16)
An accurate timekeeping chip with precision internal crystal in a wide SOIC-16 SMD package.
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GY-68 Barometric Pressure/Altitude/Temperature I²C Sensor breakout board
A tiny breakout board with a BMP180 barometric pressure/altitude/temperature sensor plus a regulator and level shifter. Connects easily to an Arduino, Micromite, etc using the I²C bus via a standard 4-pin header. For more information, see the GY-68 and BMP180 data sheets.
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DHT22/AM2302 Compatible Temperature and Humidity sensor module
A DHT22/AM2302 or equivalent digital temperature and humidity sensor module, as described in the February 2017 "El Cheapo Electronic Modules" article.
If you're using this to build the Altimeter/Weather Station from December 2017, you will need a 1k resistor wired between pins 1 and 2 and a 100nF capacitor wired in series with pin 4; see errata.
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23LC1024 128kB (1Mb) RAM (SOIC-8)
A one megabyte static RAM (SRAM) chip in an 8-pin SOIC SMD package, suitable for use with the Micromite LCD BackPack V3.
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AT25SF041(B) 512KB flash (SOIC-8)
A half megabyte flash memory chip in an 8-pin SOIC SMD package, suitable for use with the Micromite LCD BackPack V3.
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10uF 16V X7R ceramic through-hole capacitor
A small 10µF ceramic capacitor with superior performance in a through-hole package, easily soldered and suitable for use with various Micromites.
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22uF 6.3V X7R ceramic through-hole capacitor
A small 22µF ceramic capacitor with superior performance in a through-hole package, easily soldered and suitable for use with various Micromites.
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GY-BM BMP280 module
GY-BMP280 Barometric Pressure/Altitude/Temperature I²C Sensor breakout board
A tiny breakout board with a BMP280 barometric pressure/altitude/temperature sensor plus a regulator and level shifter. Connects easily to an Arduino, Micromite, etc using the I²C bus via a 6-pin header. For more information, see the BMP280 data sheet.
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GY-BME280 Barometric Pressure/Altitude/Temperature/Humidity I²C Sensor breakout board
A tiny breakout board with a BME280 barometric pressure/altitude/temperature/humidity sensor plus a regulator and level shifter. Connects easily to an Arduino, Micromite, etc using the I²C bus via a standard 4-pin header. For more information, see the BME280 data sheet.
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Micromite LCD BackPack V3 PCB [07106191]
The main board for Version 3 of the Micromite LCD BackPack, with support for a 3.5-inch touchscreen and other accessories.
We sell a kit for this project as a separate item, which includes this PCB (http://siliconchip.com.au/Shop/20/5082).
Double-sided PCB with plated through holes, solder mask and silkscreen overlay.
99 x 54.5mm.
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PIC16F1455-I/P programmed for the Microbridge [2410417A.HEX]
A PIC16F1455-I/P 8-bit microcontroller programmed with the firmware for the Microbridge (2410417A.HEX).
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PIC32MX170F256B-50I/SP programmed for the Micromite Mk2 plus capacitor
A 32-bit PIC microcontroller in 28-pin DIP programmed as the Micromite Mk2. Also includes a through-hole Tantalum capacitor to use for its internal regulator - with sufficient capacitance and voltage rating for the job, adn batch tested to have suitably low ESR.
Chips are now programmed with the revised v5.05.03 software (or higher). Note that the capacitor supplied may be a Kemet Solid Molded Tantalum type, in which case the positive lead is indicated by the rounded edge on the case and a dot marking on the top.
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Micromite LCD BackPack V3 PCB pattern (PDF download) [07106191]
A PDF with the PCB design for Version 3 of the Micromite LCD BackPack, with support for a 3.5-inch touchscreen and other accessories (double-sided).
Both layers are in a single PDF.
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Matte/Gloss Black UB3 Lid for Micromite LCD BackPack V3 or Pico BackPack using 3.5in screen
A lid laser cut from 3mm black acrylic which replaces the lid supplied with a UB3 "Jiffy" box. Attaches with the supplied screws. One side is gloss black, the other side is matte black. You can fit it either way around.
Unlike the lids designed for the 2.8in screens, this one recesses within the Jiffy box, giving a slightly more compact result.
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Micromite LCD BackPack V3 complete kit
A kit of all the non-optional parts required to build the Micromite LCD BackPack V3. See the parts list link below for details on what is included.
The PCBs, programmed microcontrollers and regulator are also available separately.
For assembly, set-up and operating instructions, see the article in the August 2019 issue.
Please note: software options which do not support the 3.5-inch touchscreen have been removed from the programming list as this was causing confusion.
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