Description: 3, LCD12864 should not show or can not be clearly demonstrated: 1) Hold down the reset button and re-KEY A 2) or: adjust adjustable resistor. Transferred to a suitable brightness. 3) or: cold start. 4) or: check whether there are other key press, such as the infrared receiver head INT0 button next to it screwdown. Such as pressure, please up. 5) or: temperature sensor chip is pulled out. If no pull-out, please pull out. Re-reset and hold KEY A.
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