diff --git a/api_drivers/common_api_drivers/indev/cst816s.py b/api_drivers/common_api_drivers/indev/cst816s.py
index 64255ac8..dcbc2c29 100644
--- a/api_drivers/common_api_drivers/indev/cst816s.py
+++ b/api_drivers/common_api_drivers/indev/cst816s.py
@@ -42,6 +42,7 @@
 _ChipID = const(0xA7)
 _ChipIDValue = const(0xB5)
 _ChipIDValue2 = const(0xB6)
+_ChipIDValue3 = const(0xB4)
 
 _ProjID = const(0xA8)
 _FwVersion = const(0xA9)
@@ -206,7 +207,7 @@ def __init__(
         self._read_reg(_FwVersion)
         print('FW Version:', hex(self._rx_buf[0]))
 
-        if chip_id not in (_ChipIDValue, _ChipIDValue2):
+        if chip_id not in (_ChipIDValue, _ChipIDValue2, _ChipIDValue3):
             raise RuntimeError(f'Incorrect chip id ({hex(_ChipIDValue)})')
 
         self._write_reg(_IrqCtl, _EnTouch | _EnChange)