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esp-ftl [2019/04/12 13:51]
donpdonp [New Parts]
esp-ftl [2019/11/24 19:05] (current)
donpdonp
Line 27: Line 27:
 ## FTL 2016-July ## FTL 2016-July
  
-{{http://donp.org/i/5SjT.jpg?500}}+{{hardware:esp12-ftl.jpg?500}}
  
 ## May 2016 Rev ## May 2016 Rev
Line 111: Line 111:
 ## Pins that matter for NodeMCU ## Pins that matter for NodeMCU
  
-  * Grounds: 1 or [17,18,19,20]+  * Grounds: 1 or center pads[17,18,19,20]
   * Power: 3   * Power: 3
-  * NeedHigh: 4[float ok], 11[float ok], 12[float ok]+  * NeedHigh: 4/CH_PD[float?], 11/IO2[float high], 12/IO0[float high]
   * NeedLow: 9   * NeedLow: 9
  
Line 125: Line 125:
   * add single neopx?   * add single neopx?
  
-## Reflow technique+## Hotplate Reflow technique
   warmup while on 'W' on WARM   warmup while on 'W' on WARM
   place board    place board 
Line 173: Line 173:
     * esp32 (waiting) + winbond 4mb flash w25q32fv     * esp32 (waiting) + winbond 4mb flash w25q32fv
   * USB/Serial   * USB/Serial
-    * USB Serial CP2102N, QFN20. bonus 100ma 3.3v reg $1.33+    * USB Serial CP2102N, QFN20. bonus 100ma 3.3v, 24Mhz clock! reg $1.33
     * FT230X, batt chg detection, QFN16 4x4 $2.04     * FT230X, batt chg detection, QFN16 4x4 $2.04
     * XR21V1410, QFN16 3x3 $3.88     * XR21V1410, QFN16 3x3 $3.88
Line 195: Line 195:
  
 ## 8285 Nov 2016 ## 8285 Nov 2016
-  * ESP needs a 26MHz Clock + 2 10pF caps+  * ESP needs a 26MHz Crystal + 2 10pF caps
   * JST connecors were changed to the wrong size   * JST connecors were changed to the wrong size
   * power CAP back-fed into data pin and fried! zener diode BAT-54S?   * power CAP back-fed into data pin and fried! zener diode BAT-54S?
Line 261: Line 261:
   * bme280 press/humid/temp $3   * bme280 press/humid/temp $3
   * VEML RGB sensor $2.12   * VEML RGB sensor $2.12
 +
 +# ESP12s flash params
 +  SPI Speed      : 40MHz
 +  SPI Mode       : DIO
 +  SPI Flash Size & Map: 32Mbit(512KB+512KB)
 +
 +
 +# 3.3v vreg considerations
 +
 +  * https://www.mouser.com/ProductDetail/Texas-Instruments/LMS8117AMP-33-NOPB?qs=sGAEpiMZZMsGz1a6aV8DcBojudwDyMGacuHNsdAV7yU%3D
 +  * https://www.mouser.com/ProductDetail/STMicroelectronics/LD29150DT33R?qs=sGAEpiMZZMsGz1a6aV8DcPlO7P8YByjW32ksfjzOXyE%3D
 +
 +# serial CTS/RTS 2019Nov
 +  * watched CTS/RTS on esp12s
 +    * CTS always high
 +    * RTS always low
 +    * no help
 +  * mongoose os reports esp8266 can handle 4MBaud, so speed is no issue
  
esp-ftl.1555102275.txt.gz ยท Last modified: 2019/04/12 13:51 by donpdonp