tm1650 - tm1650 Digital tube and key scanning chip#
Adaptation status unknown
Note
This page document is automatically generated by this file. If there is any error, please submit issue or help modify pr, thank you!
Example
--Attention:
--1、tm1650 The driver's digital tube should choose a common negative digital tube
--2、tm1650 Can also drive LED, if it is LED, you should connect the LED into a common negative digital tube inside the same circuit
--3、Support key scan, in this mode, the DP/KP pin of tm1650 is the interrupt output pin
--=========Key scan example==========
local function tm1650_kcb(key_code)
log.info('tm1650 user cb,key code=',string.format("%02X",key_code))
end
sys.taskInit(function()
tm1650.init(pin.PB06,pin.PB07,tm1650.MODE_KEY_INPUT,pin.PB08,tm1650_kcb)
while 1 do
sys.wait(2000)
end
end)
--==========Digital tube display example===========
sys.taskInit(function()
--Common Yin segment code table, 0~9 numbers
local NUM_TABLE_AX = {
[0]=0x3f,[1]=0x06,[2]=0x5b,[3]=0x4f,[4]=0x66,
[5]=0x6d,[6]=0x7d,[7]=0x07,[8]=0x7f,[9]=0x6f
};
tm1650.init(pin.PB06,pin.PB07,tm1650.MODE_LED_OUTPUT)
while 1 do
for i = tm1650.DIG1, tm1650.DIG4, 1 do
tm1650.print(i,NUM_TABLE_AX[6])
sys.wait(500)
end
sys.wait(1000)
for i = tm1650.BRIGHT1, tm1650.BRIGHT8, 1 do
tm1650.setBright(i)
sys.wait(500)
end
for i = 1, 8, 1 do
sys.wait(500)
tm1650.close()
sys.wait(500)
tm1650.open()
end
sys.wait(2000)
tm1650.clear()
end
end)
tm1650.init(scl_pin,sda_pin,mode,irq_pin,key_cb)#
TM1650 Initialization, according to the mode parameters can be set to digital tube display or key scanning mode
Parameters
Incoming Value Type |
Explanation |
---|---|
number |
scl_pin,Defines the clock line driver pin |
number |
sda_pin,Data line driver pin defined |
number |
mode,Defines the working mode, tm1650.MODE_LED_OUTPUT, digital tube LED drive mode; Tm1650.MODE_KEY_INPUT, key detection mode |
number |
irq_pin,Define Key Interrupt Pin |
function |
key_cb,Key user callback function, this function has a number type parameter, which is the key code of the pressed key |
Return Value
None
Examples
tm1650.init(pin.PB06,pin.PB07,tm1650.MODE_LED_OUTPUT) --Digital tube display mode
tm1650.init(pin.PB06,pin.PB07,tm1650.MODE_KEY_INPUT,pin.PB08,tm1650_kcb) --Key Scan Mode
tm1650.setBright(bri)#
Set the display brightness of TM1650, this operation does not affect the data in the video memory
Parameters
Incoming Value Type |
Explanation |
---|---|
number |
The brightness parameter, with a value tm1650.BRIGHT1~tm1650.BRIGHT8 |
Return Value
None
Examples
tm1650.setBright(tm1650.BRIGHT8)
tm1650.open()#
Open the display of TM1650, this operation does not affect the data in the video memory
Parameters
None
Return Value
None
Examples
tm1650.open()
tm1650.close()#
Turn off the display of TM1650, this operation does not affect the data in the video memory
Parameters
None
Return Value
None
Examples
tm1650.close()
tm1650.print(dig,seg_data)#
Send the specified segment data to the video memory corresponding to a specified bit of TM1650 for display
Parameters
Incoming Value Type |
Explanation |
---|---|
number |
dig,Define the bit selection parameter, with a value tm1650.DIG1~tm1650.DIG4 |
number |
seg_data,Define segment data parameters |
Return Value
None
Examples
tm1650.print(tm1650.DIG1,0x3f)
tm1650.clear()#
Clear all bits of TM1650 corresponding to the video memory data, that is, all brush write 0
Parameters
None
Return Value
None
Examples
tm1650.clear()