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esp-ftl [2019/04/04 18:42]
donpdonp [Rev 2019 Mar]
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, bonus 100ma 3.3v reg $1.66 (out of stock)+    * 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 235: Line 235:
   * update: only MOSI & CLK needed.    * update: only MOSI & CLK needed. 
   * update: any two gpio pins work   * update: any two gpio pins work
-  * Add: 5v voltage monitor (v divider on adc) +  * Add: 5v voltage monitor (v divider on adc, no room on adc. channels?
-  * Ambient light measure+  * Ambient light measure (GL5528 10k-20k ohm, pinout 3.3v, ADC 0-1v)
   * Flip gnd/data for temp sensor   * Flip gnd/data for temp sensor
   * add pwr-data resistor for sensor   * add pwr-data resistor for sensor
Line 251: Line 251:
   * attiny85 $2.24   * attiny85 $2.24
   * laserbee 8051 $1.38   * laserbee 8051 $1.38
-  * 1.5-5.5v -> 3.3v reg 500mA $0.88+  * 1.5-5.5v -> 3.3v reg 500mA $1.09  LD39050PU33R  (lavalamp test: 20ma observed) 
 +  * 2-8v -> 3.3 reg 400ma $0.87 XC6203E332PR-G (easier to solder) 
   * 0-15v -> 3.3v reg 800mA $1.10   * 0-15v -> 3.3v reg 800mA $1.10
   * mini-usb connector $0.46   * mini-usb connector $0.46
Line 258: Line 259:
   * gpio led + resistor   * gpio led + resistor
   * ds18b20 ($0.50 aliexpress)+ resistor   * ds18b20 ($0.50 aliexpress)+ resistor
 +  * 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.1554428542.txt.gz · Last modified: 2019/04/04 18:42 by donpdonp