GoPlus2 Module and Core2 for AWS



  • I have both, but when I connect a servo to the GoPlus2 it doesn't move at all.

    I have flashed Core2 firmware and I'm using Flow to do it.

    Very simple program with a loop for moving the servo, full stop.

    I've measured header voltages and there's 5V to GND.
    Oscilloscope at "S" shows no PWM and even no pulses at all. S keeps at 0v always and therefore servo doesn't move.

    I've run out of ideas...



  • Hello @ciconde

    have you tried a different servo output. I remember that in the past there was an issue with the first output. Could you share your UIFlow program?

    Thanks
    Felix



  • Have you tried setting the correct servo port and selecting the correct GOplus?
    The Core2 uses a goplus2



  • @felmue I have the servo in the port with a small 2, the LED between the servos is green, I've measured 5V between G and V but when I connect a oscilloscope beween S and G there's no trace of PWM.

    I'm using GoPlus2 (big label on the side) and program is very simple:
    0_1637920738918_5dbc1a03-1297-4637-bd71-df8339630bbf-image.png

    MD5 is as follows (can't attach)

    {"components":[{"id":"_coretwoscreen","createTime":1637687096589,"name":"screen","x":0,"y":0,"width":320,"height":240,"backgroundColor":"#000000","backgroundImage":"","type":"screen"},{"id":"____buttonA","createTime":1637687096589,"name":"ButtonA","buttonIndex":0,"x":35,"y":216,"width":64,"height":24,"text":"ButtonA","visibility":false,"type":"button"},{"id":"____buttonB","createTime":1637687096589,"name":"ButtonB","buttonIndex":1,"x":125,"y":216,"width":64,"height":24,"text":"ButtonB","visibility":false,"type":"button"},{"id":"___buttonC","createTime":1637687096589,"name":"ButtonC","buttonIndex":2,"x":215,"y":216,"width":64,"height":24,"text":"ButtonC","visibility":false,"type":"button"},{"id":"vQLJe4OCV%u2m-f","createTime":1637687307599,"isCoreTwo":true,"isPaper":false,"name":"label1","x":129,"y":42,"color":"#ffffff","text":"Text","font":"FONT_MONT_24","rotation":0,"type":"label","layer":8}],"type":"core2","versions":"Beta","units":[],"hats":[],"blockly":"<variables><variable id="L_m|(4}/9eWO:%!NisHe">i</variable></variables><block type="basic_on_setup" id="setup_block" deletable="false" x="70" y="30"><next><block type="go_plus2_set_servo_angle" id="m}D:c{KG33R]}RXg1/V\"><field name=\"list\">S2</field><value name=\"angle\"><shadow type=\"math_number\" id=\"QsGvi0lK/)FFALXIgOSL\"><field name=\"NUM\">0</field></shadow></value><next><block type=\"variables_set\" id=\"QZp~!Wkrc;aad.O7:mD"><field name="VAR" id="L_m|(4}/9eWO:%!NisHe">i</field><value name="VALUE"><block type="math_number" id=")Fa9}swif6+wjRJ]zZYg"><field name="NUM">0</field></block></value><next><block type="controls_whileUntil" id="lDZ^V=;B;ktf51})gG,Q"><field name="MODE">WHILE</field><value name="BOOL"><block type="logic_boolean" id="#e+UDjF=ZP*_zKi|A1=3"><field name="BOOL">TRUE</field></block></value><statement name="DO"><block type="math_change" id="|S}G[^R}eHN.HYtHq[PZ"><field name="VAR" id="L_m|(4}/9eWO:%!NisHe">i</field><value name="DELTA"><shadow type="math_number" id="V0Fr*{8Z(!@2BAW2T7:"><field name="NUM">1</field></shadow></value><next><block type="label_set_text" id="mJLH;9Yi#NH=3Fox_c#\"><field name=\"COMPONENT\">label1</field><value name=\"TEXT\"><shadow type=\"text\" id=\"g45]+A0%b)o%xK1=NsPX\"><field name=\"TEXT\">Hello M5</field></shadow><block type=\"convent_str\" id=\"]uOw~L$C7g1h(|:j^vV|\"><value name=\"VALUE\"><block type=\"variables_get\" id=\"h2=+o(mniB8nLZx9Fmr?\"><field name=\"VAR\" id=\"L_m|(4}/9eWO:%!NisHe\">i</field></block></value></block></value><next><block type=\"timer_delay_ms\" id=\"7*S;$=2$ElNesD2!Ng?8\"><value name=\"DELAY\"><shadow type=\"math_number\" id=\"DNPc@Zz]lRaKD5tCPwW"><field name="NUM">500</field></shadow></value><next><block type="go_plus2_set_servo_angle" id="+(McF$E6N3Xp!P4LQZQ\"><field name=\"list\">S2</field><value name=\"angle\"><shadow type=\"math_number\" id=\"{^B~OEG$3uVL{6Q?hA"><field name="NUM">0</field></shadow><block type="variables_get" id="}!?c}vLh:jNJMG_DzWx7"><field name="VAR" id="L_m|(4}/9eWO:%!NisHe">i</field></block></value><next><block type="controls_if" id="kl1FQ4?cRAS_n[%z6M(x"><value name="IF0"><block type="logic_compare" id=".CHpi]qAHlMRug5/kIXZ"><field name="OP">EQ</field><value name="A"><block type="variables_get" id="VE}}%{K640JGp~8o|ycr"><field name="VAR" id="L_m|(4}/9eWO:%!NisHe">i</field></block></value><value name="B"><block type="math_number" id="v7n}ps)KNXK(6in~6op!"><field name="NUM">180</field></block></value></block></value><statement name="DO0"><block type="variables_set" id="WobrJJD*K?SIveZ9SVWM"><field name="VAR" id="L_m|(4}/9eWO:%!NisHe">i</field><value name="VALUE"><block type="math_number" id="kov:[v~_vn=Kj7imf7;3"><field name="NUM">0</field></block></value><next><block type="timer_delay_ms" id="lG5Q^c;@:H=;`},HDqs="><value name="DELAY"><shadow type="math_number" id="FUtp2)JEwql6hgOs1{(."><field name="NUM">1000</field></shadow></value></block></next></block></statement></block></next></block></next></block></next></block></next></block></statement></block></next></block></next></block></next></block>","Blockly.Remotes":[],"Blockly.RemotePlus":[{"id":"__title","blockId":"","createTime":1637920356349,"name":"M5RemoteTitle","dragAndDrop":false,"resizable":false,"options":{"minWidth":1,"minHeight":1,"maxWidth":6,"maxHeight":10,"defaultWidth":2,"defaultHeight":1},"w":2,"h":1,"bgColor":"#0080FF","color":"#fff","fontsize":"M","label":"M5Remote","type":"title","x":0,"y":0}],"modules":[]}



  • @ajb2k3 Tested all 4 ports, no PWM signal on any of them. All of them have 5V power.





  • Hello @ciconde

    I've tried your code with UIFlow 1.8.7 and my M5Core2 (firmware 1.8.7) and M5GoPlus2 and it works as expected.

    Did you make sure your M5Core2 and M5GoPlus2 are firmly stacked together? Sometimes the modul's pins are a tad short and maybe not all of them make proper contact. The only other thing at this point I can think of is defective hardware.

    Thanks
    Felix

    P.S. I had to rebuild your code from the picture as the 'file' you posted couldn't be read by UIFlow properly.



  • Hello @ciconde

    ok, I think I found the real reason it might or might not work. The M5GoPlus2 uses the same I2C address (0x38) as the touch screen in the M5Core2.

    That also explains as to why for me when I use servo output 1 the touch screen stops working. See thread here.

    In other words the M5GoPlus2 module is not really compatible with the M5Core2.

    Thanks
    Felix