device.read(endpoint.bEndpointAddress, endpoint.wMaxPacketSize)

+--------------------- Report type
 |  +------------------ Weight Stable (tray not moving)
 |  |  +--------------- grams (not pounds)
 |  |  |  +------------ whatever
 |  |  |  |  +--------- 2 grams
 |  |  |  |  |  +------ 0 x 256 grams
 |  |  |  |  |  |
 V  V  V  V  V  V
[3, 4, 2, 0, 2, 0]

# ep_out.write('x07x04x02x00x00x00', 6)
ep_out.write([0x07, 0x04, 0x02, 0x00, 0x00, 0x00], 6)

handle = hid_open(0x7b7c, 0x301, NULL);
buf[0] = 0x07;
buf[1] = 0x04;
buf[2] = 0x02;
res = hid_write(handle, buf, 3);

h = hid.device()
h.open(0x7b7c, 0x301)

print("Manufacturer: %s" % h.get_manufacturer_string())
print("Product: %s" % h.get_product_string())
print("Serial No: %s" % h.get_serial_number_string())

res = h.write([0x07, 0x04, 0x02, 0,0,0])

res = h.write([0x07, 0x04, 0x02, 0,0,0])
res = h.write([0x07, 0x04, 0x02, 0,0,0])
res = h.write([0x07, 0x04, 0x02, 0,0,0])