初始化提交

2024-07-19 10:16:00 +08:00
parent 4c7b571f20
commit 4a2d56dcc4
7084 changed files with 741212 additions and 63 deletions
--- a/boards/default/micropython_nrf51822_microbit/build/lib/ntc.py
+++ b/boards/default/micropython_nrf51822_microbit/build/lib/ntc.py
@@ -0,0 +1,27 @@
+from microbit import *
+import math
+
+_VOLTAGE_POWER = 5
+_RS = 10
+_B = 3950
+_T1 = 273.15 + 25
+_R1 = 100
+
+def read(pin, r1, b, rs):
+    r1 = r1 / 1000
+    rs = rs / 1000
+    
+    # print("rs:" + str(rs))
+    
+    _analogValue = pin.read_analog()
+    _voltageValue = (_analogValue / 1545) * _VOLTAGE_POWER
+    
+    # print("voltageValue:" + str(_voltageValue))
+
+    _rt = ((_VOLTAGE_POWER - _voltageValue) * rs) / _voltageValue
+    
+    # print("rt:" + str(_rt))
+
+    _tempValue = (((_T1 * b) / (b + _T1 * math.log(_rt / r1))) - 273.15)
+    
+    return _tempValue