Altimeter, the bit shift malfunction
I was getting wrong lectures from the pressure sensor. But it was obvious that there was nothing wrong with it, because the very same sensor […]
Continue reading »Category: Altimetry
Altimeter, the bug hunt
The PCB is ready, and so is the code —almost—, but as… Computers are good at following instructions, but not at reading your mind —Donald […]
Continue reading »Altimeter Mk I
The board is taking shape.
Continue reading »Noise, noise, noise
Noise is a mayor concern when precise measuring is of utmost importance. Thus, before ordering the PCB I wanted to test the sensor on a […]
Continue reading »Barometric altimeter, the core components
In the picture we can see the BMP085 barometric pressure sensor from Bosch and the SOIC packaged PIC18LF14K50.
Continue reading »Barometric altimeter v0.1
That’s more or less what I think the board should look like.
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Static pressure
When estimating altitude with a barometric pressure sensor, it’s very important to choose carefully the position of the static hole as the air is perturbed […]
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Telemetry backup, EEPROM
Sending data over radio frequency is subject to connectivity flaws; thus it is important to have some data backup mechanism. The most sensible option would […]
Continue reading »Send data over RF to Excel
One of the perks of telemetry systems is the ability to gather essential performance data remotely, no wires attached. If a F1 car mounts about […]
Continue reading »Amateur Rocketry. The Timer0 Module
The Timer0 is one of the three built-in timers inside a PIC18 microcontroller. According to the Datasheet, the Timer0 module incorporates the following features: Software […]
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