ti77_liveDisp.py

# TI 77GHz Radar sample code

import ti77radar
import numpy as np
import matplotlib.pyplot as plt
from matplotlib.animation import FuncAnimation

# TI radar
tir = ti77radar.Device('awr1642')
tir.config(NS = 256)

# Figure
fig = plt.figure()
ax = plt.axes(xlim=(0, tir.NS), ylim=(-200, 200))
[line1, line2] = ax.plot([], [], 'b-', [], [], 'r-')
ax.grid()
ax.set_xlabel('sample index')
ax.set_ylabel('raw ADC values (Average of RX0,RX1,RX2,RX3)')
def init():
    line1.set_xdata(np.arange(tir.NS))
    line2.set_xdata(np.arange(tir.NS))
    return [line1, line2]

def animate(i):
    try:
        tir.clear_buffer()
        # f = tir.capture_frame()
        f = tir.average_frames(8)
        s = np.matmul(np.ones((1,tir.rx)) / tir.rx, f)
        s = s.reshape((-1,))
        sI = np.real(s)
        sQ = np.imag(s)
    except:
        sI = sQ = np.zeros(tir.NS)
    line1.set_ydata(sI)
    line2.set_ydata(sQ)
    return [line1, line2]

anim = FuncAnimation(fig, animate, init_func=init, interval=100, blit=True)

plt.show()