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    Problem with the first byte when receiving data

    Between the esp01 and the 40x2 port connect this logic level converter https://learn.sparkfun.com/tutorials/bi-directional-logic-level-converter-hookup-guide , no creo que alla conflicto en los niveles voltaicos sin embargo revise esto valores y son aceptables: 4,85v (para TTL) y 3,27 (hacia el...
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    20X2 - 4x4 keypad scanner

    Hi hippy,I've been testing the original code posted in the thread # 1 adapting it to 40x2 as recommended in the following threads, as I show below .. #Picaxe 40X2 #Terminal 19200 #No_Data SetFreq m16 PULLUP %11000011 ;pullup b7b6....b1b0 manual 2 p159 v7.7 lastKeyPress = $FF Do Gosub...
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    4x4 keypad matrix questions.

    Hi rossko57, the first problem is when I turn on the computer and I have not pressed any key the routine sends a "0" either terminal or using the debug, but it confuses me how to detect this second value when you press any key, I can not see inside routine, I understand that DIR_X is responsible...
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    4x4 keypad matrix questions.

    hi all, testing of code mentioned in the thread # 1, I have encountered several problems, the code to adapt it to 40x2 but I can not understand why once ON the circuit and when striking a key addition to sending effectively this key sends "0", this does every time I press any key. these are the...
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    point float & picaxe?

    for westaust55: ok ... delivering the FPU values ​​are the result of a physical phenomenon ADC monitored by the FPU port, so the result is a floating point value ... instruction regarding FTOA understand that the result of this transformation format is deposited on the buffer FPU...
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    point float & picaxe?

    While observing this instruction FTOA .... I see that the content is stored in the buffer of the FPU, but my question is: this value corresponds to ascii floating point? .. using these lines of code: gosub Fpu_wait writei2c 0, (FREADA) readi2c 0...
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    point float & picaxe?

    Greetings to all in the forum, I am developing a project with the um-FPU v.3 .. and still does not understand how the picaxe (in my case 40x2) to handle these floating point values​​? I understand that by reading the value of the FPU floating point (32 bit format) I require 4 bytes...
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    floating point & picaxe?

    Greetings to all in the forum, I am developing a project with the um-FPU v.3 .. and still does not understand how the picaxe (in my case 40x2) to handle these floating point values​​? I understand that by reading the value of the FPU floating point (32 bit format) I require 4 bytes...
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    DHT11 Humidity Sensor

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