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All Projects of Bruce Land

2.4k
2.4k
18
The programming model I wish to use in ece5760 is LINUX running on the ARM processors, talking to hardware on Intel/Altera/Terasic board.
Project Owner Contributor

DE1-SoC CycloneV experiments

bruce-landBruce Land

823
25
23
Spectral speech estimate is stored in flash and reconstructed as a sum of sines during playback thru SPI attached DAC.
Project Owner Contributor

Speech playback on PIC32, 8:1 compression

bruce-landBruce Land

758
25
14
Two DDS units, one setting the phase of the other, with programmable envelopes make a FM synth unit.
Project Owner Contributor

FM sound synthesis on PIC32

bruce-landBruce Land

1.4k
1.3k
36
Log-frequency spaced, digital bandpass filters updated at 8 KHz, averaged, and plotted on a LCD every 12 milliseconds. Suitable for speech.
Project Owner Contributor

Realtime Audio Filter-bank on PIC32

bruce-landBruce Land

886
20
13
Hook a 12-key matrix to a PIC32 and scan the keypad
Project Owner Contributor

Keypad matrix scanner for PIC32

bruce-landBruce Land

1.3k
88
12
The seed for the numbers comes from a floating ADC pin, whitened with the rand function. Needs further work for crypto.
Project Owner Contributor

Random noise on PIC32

bruce-landBruce Land

1.3k
56
21
PIC32 Charge-Time Measurement Unit is a programmable current source connected directly to an ADC pin.
Project Owner Contributor

Measure VERY short times plus R, L and C

bruce-landBruce Land

789
32
20
Surpressing 60 Hz noise. Kyle D. Wesson, Robert M. Ochshorn, Bruce R. Land, Journal of Neuroscience Methods 185 (2009) 50–55
Project Owner Contributor

Cheap, Hybrid (digital, analog), noise canceller

bruce-landBruce Land

802
75
2
We had a requirement to capture very small signals from the auditory system of fish, while automatically varying the stimulus.
Project Owner Contributor

SRS Model SR830 Lock-in Amp control by Matlab

bruce-landBruce Land

820
31
9
Enhancing a laser cytometer to measure cell size by time of flight: US Patent 4765737
Project Owner Contributor

Time-of-flight biological cell size measurements

bruce-landBruce Land

2.4k
2.4k
16
The need for speed in DSP and animation leads us to look for the fastest way to do arithmetic.
Project Owner Contributor

PIC32 Fixed & floating point performance

bruce-landBruce Land

5.3k
77
53
Simple, passive, cheap DAC and Verilog VGA driver for 8-bit color VGA from the Altera/Terasic DE0-Nano
Project Owner Contributor

DE0-Nano FPGA to VGA output

bruce-landBruce Land

3.5k
66
32
Converts nRF24L01+ pinout to Arduino single-inline. Just a boring header and a small code modification.
Project Owner Contributor

Arduino UNO to nRF24L01+ Header

bruce-landBruce Land

612
19
20
Plotting the log-magnitude of the spectrum at 30 frames/sec requires FAST log and mag operations.
Project Owner Contributor

Fast, Approximate, LOG and MAG in GCC

bruce-landBruce Land

1.3k
31
25
The PIC32 programmable Vref generator can be used as a 4-bit DAC with a bandwidth of >200kHz. Good enough for speech playback.
Project Owner Contributor

Reference voltage output plays WAV files on PIC32

bruce-landBruce Land

1.3k
27
13
Fixed point filters using IIR second-order-sections (SOS) for good numerical stability. Matlab or Octave is used to factor the filters
Project Owner Contributor

Digital SOS filters for PIC32

bruce-landBruce Land

5.1k
100
67
450 KHz bandwidth, 512 point FFT, Hanning Windowed, 256 frequency TV display, over 30 updates/sec
Project Owner Contributor

PIC32 Spectrum Analyser

bruce-landBruce Land

1.4k
1.5k
24
Simulations to aid in the teaching of "Introduction to Computational Neuroscience" in 2004
Project Owner Contributor

Neural simulation in Matlab

bruce-landBruce Land

3.6k
116
62
A small, cheap, light-weight preamplifier for student use in electrophysiology labs. Performance is quite good.
Project Owner Contributor

Small physiological preamplifier

bruce-landBruce Land

3.1k
1.6k
36
Simulation and hardware were used to teach first year students about basic electronics and applications in biology
Project Owner Contributor

Bio-electronics for first-year students

bruce-landBruce Land

5.3k
82
45
PIC32 DMA can send a sine table to a DAC at >3.2 million samples/sec, making low distortion 100 KHz sine waves and using zero cpu cycles.
Project Owner Contributor

ZERO CPU load function generator

bruce-landBruce Land

Projects Bruce Land contributes to

3k
115
69
Hackaday.io power user hideout
Project Owner Contributor

alt.hackaday.io

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