code_display variant with raw value display

firmware/tester/code_with_raws.py

@@ -0,0 +1,144 @@
+# touchwheelsao_tester.py -- simple I2C host for TouchWheelSAO
+# 5 Aug 2024 - @todbot / Tod Kurt
+#
+
+
+import time, board, busio
+import displayio, terminalio, i2cdisplaybus
+import adafruit_displayio_ssd1306
+from adafruit_display_text import bitmap_label as label
+from adafruit_bus_device import i2c_device
+
+# import digitalio
+
+# but = digitalio.DigitalInOut(board.GP8)
+# but.switch_to_input(pull=digitalio.Pull.UP)
+
+# while True:
+#     print("but:",but.value)
+#     time.sleep(0.2)
+
+sao_i2c_addr = 0x54
+
+sao_i2c = busio.I2C(scl=board.GP17, sda=board.GP16)
+sao_i2cdev = None
+
+dw,dh = 128,64
+displayio.release_displays()
+disp_i2c = busio.I2C(scl=board.GP15, sda=board.GP14)
+display_bus = i2cdisplaybus.I2CDisplayBus(disp_i2c, device_address=0x3C)  # or 0x3D depending on display
+display = adafruit_displayio_ssd1306.SSD1306(display_bus, width=dw, height=dh, rotation=180)
+maingroup = displayio.Group()
+display.root_group = maingroup
+lbl_title = label.Label(terminalio.FONT, text="TouchwheelSAO tester", x=0, y=10, scale=1)
+lbl_pos_text = label.Label(terminalio.FONT, text="pos:", x=0, y=25, scale=1)
+lbl_pos_val = label.Label(terminalio.FONT, text="unk", x=30, y=25, scale=1)
+lbl_touches_text = label.Label(terminalio.FONT, text="touches:", x=0, y=40, scale=1)
+lbl_touches_val = label.Label(terminalio.FONT, text="   ", x=60, y=40, scale=1)
+lbl_rawtouch_text = label.Label(terminalio.FONT, text="raw_val:", x=0, y=55, scale=1)
+lbl_rawtouch0_val = label.Label(terminalio.FONT, text="00", x=60, y=55, scale=1)
+lbl_rawtouch1_val = label.Label(terminalio.FONT, text="00", x=80, y=55, scale=1)
+lbl_rawtouch2_val = label.Label(terminalio.FONT, text="00", x=100, y=55, scale=1)
+for l in (lbl_title, lbl_pos_text, lbl_pos_val, lbl_touches_text, lbl_touches_val,
+          lbl_rawtouch_text, lbl_rawtouch0_val, lbl_rawtouch1_val, lbl_rawtouch2_val):
+    maingroup.append(l)
+
+
+def i2c_scan(i2c):
+    if i2c is None: return
+    while not i2c.try_lock(): pass
+    print("I2C addresses found:",
+          [hex(device_address) for device_address in i2c.scan()])
+    i2c.unlock()
+
+def i2c_write_register(_i2cdev, reg_addr, reg_val):
+    """Write 8 bit value to register at address."""
+    if _i2cdev is None: return
+    _buf = bytearray(2)
+    _buf[0] = reg_addr
+    _buf[1] = reg_val
+    with _i2cdev as myi2cdev:
+        myi2cdev.write(_buf)
+
+def i2c_read_register_bytes(_i2cdev, reg_addr, num_bytes):
+    with _i2cdev as myi2cdev:
+        myi2cdev.write(bytes([reg_addr]))
+        result = bytearray(num_bytes)
+        myi2cdev.readinto(result)
+    return result
+
+#time.sleep(5)
+
+led_state = 0
+
+i2c_scan(sao_i2c)
+
+while True:
+
+    if sao_i2cdev is None:
+        time.sleep(0.25)
+        try: 
+            sao_i2cdev = i2c_device.I2CDevice(sao_i2c, sao_i2c_addr)
+        except ValueError as e:
+            print("SAO error:", e)
+
+    try:
+        r = i2c_read_register_bytes(sao_i2cdev, 0, 1)
+        pos = r[0]
+        print("  pos:", pos)
+
+        lbl_pos_val.text = str(pos) if pos > 0 else "no touch"
+
+        r = i2c_read_register_bytes(sao_i2cdev, 1, 1)
+        print("  touches:", f'{r[0]:03b}')
+        lbl_touches_val.text = f'{r[0]:03b}'
+
+        r = i2c_read_register_bytes(sao_i2cdev, 2, 1)
+        print("  raw_touch0:", f'{r[0]:02x}')
+        lbl_rawtouch0_val.text = f'{r[0]:02x}'
+
+        r = i2c_read_register_bytes(sao_i2cdev, 4, 1)
+        print("  raw_touch1:", f'{r[0]:02x}')
+        lbl_rawtouch1_val.text = f'{r[0]:02x}'
+
+        r = i2c_read_register_bytes(sao_i2cdev, 6, 1)
+        print("  raw_touch0:", f'{r[0]:02x}')
+        lbl_rawtouch2_val.text = f'{r[0]:02x}'
+
+    except Exception as e:
+        print("SAO no device:", e)
+        lbl_pos_val.text = "no SAO"
+        sao_i2cdev = None
+
+    time.sleep(0.2)
+
+
+    # try:
+    #     print("%.2f write reg:" % time.monotonic())
+    #     i2c_write_register(sao_i2cdev, 14, led_state)
+    #     led_state = not led_state
+    #     #i2c_write_register(i2cdev, 17, 100)  # set RGB B 
+    #     print("reading...:")
+    #     r = i2c_read_register_bytes(sao_i2cdev, 0, 1)
+    #     print("  pos:", r, r[0])
+
+    #     lbl_pos_val.text = str(r[0])
+
+    #     r = i2c_read_register_bytes(sao_i2cdev, 1, 1)
+    #     print("  touches:", r, f'{r[0]:03b}')
+    #     r = i2c_read_register_bytes(sao_i2cdev, 2, 1) # RAW0L
+    #     print("  raw0L:", r, r[0])
+    #     r = i2c_read_register_bytes(sao_i2cdev, 3, 1) # RAW0H
+    #     print("  raw0H:", r, r[0])
+    #     r = i2c_read_register_bytes(sao_i2cdev, 8, 1) # THRESH0L
+    #     print("  thresh0L:", r, r[0])
+
+    # except OSError as e:
+    #     print(e)
+    # time.sleep(0.2)
+
+
+
+
+
+