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接上电池,用一个按钮把rst和gnd接上,按一下按钮就会自动开机发送请求,然后进入深度睡眠,可用于低功耗的物联网开关触发器(如需使用自动唤醒,还要将gpio16接到rst)! q2 X7 J6 u; g8 d
- #include <ESP8266HTTPClient.h>+ d( c% t5 `6 l" W! L4 X# \4 u
- #include <ESP8266WiFi.h>
* ]2 Y$ t' W' m! s - #include <ESP8266WiFiMulti.h>' l6 @0 d" H2 }* L$ e: I
- #include <ESP8266WebServer.h>- Q8 ?8 U3 a0 d9 p. _8 A6 u
- #include <arduino.h>4 i- ]2 d% h: ?3 l3 x
- ESP8266WiFiMulti WiFiMulti;. `" u M: Q, X# G( L( h6 r& w4 |7 g
- ESP8266WebServer server(80);& e/ {# v& W/ U I5 W, k0 O' I
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
. f L$ g" K& L4 M7 e - ADC_MODE(ADC_VCC);
( x+ J* i- z- C6 m& j P - void setup() {, Y- }/ B3 [9 c
- Serial.begin(115200);! H# s5 m' h( R' b' E
- Serial.print("\r\n\n");
7 I/ d( p& l) Q4 M& Z* `6 U - pinMode(2,OUTPUT);
Y3 v0 y! n0 ]/ o8 M" _" l1 w$ G! O - // WIFI
% ?6 N9 N$ P$ w0 q# ] - WiFi.mode(WIFI_STA);( O* {/ ^* ?5 ]. Q+ {8 _1 o
- WiFi.hostname("Sparkle");
: p8 l2 `0 U l3 s( c - WiFiMulti.addAP("wifi ssid", "wifi password");
& L. U' [2 q! p2 g - int tryNum = 15;: T* D2 @- J o0 P+ a2 J5 O" _
- Serial.print("Connect WiFi");2 o4 E: r5 X' s7 h. d g
- while (WiFiMulti.run() != WL_CONNECTED) {7 j! \2 z' a; f" Z# |8 L7 _' e1 ^' D
- digitalWrite(2,0);
9 ?& y; l! L0 @# [' l, M - delay(200);" I4 i A6 f: n& I; C8 X
- digitalWrite(2,1);
, Z, i# G. C$ |& v - delay(300);2 s$ Q& X2 } U: ~! B! R, j# b
- Serial.print(".");
: s* i8 @. y( l" q - tryNum--;1 m! Z8 g8 h; K" u0 S9 E1 B
- if (tryNum == 0) {0 m3 m+ |4 i; v& u
- // 1min
* m6 D! g- k& i - // ESP.deepSleep(60e6);
H, B7 j# D2 k) z6 _$ R - ESP.deepSleep(0);" X- b8 l, t3 s# { X
- }
1 v5 a" p9 @& c - }
+ b$ V7 N3 u: @, Y7 h- D - Serial.print("\r\n");1 {& }( G8 w, q/ @. r' z
- digitalWrite(2,1);# ?( L1 X# q6 I8 A% ^, v
- Serial.print("IP address : ");7 B$ E2 V/ L. P$ y* {1 x
- Serial.println(WiFi.localIP());# b, z! ]. l4 F# q, n: d f
- server.on("/", HTTP_GET, [](){
, ^+ e8 X# }% w: Y4 H% ` - server.sendHeader("Connection", "close");
* c+ |9 N2 c) U" }! C; ] - server.send(200, "text/html", serverIndex);/ n: Y3 m7 C$ S4 J: F
- });$ z+ P1 c8 v g% w* {1 q( {0 G
- server.on("/update", HTTP_POST, [](){8 w) `- U( T! y; v
- server.sendHeader("Connection", "close");
5 h/ p6 Q. b2 R; u" ^ - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");% L* I3 r! b/ {4 O ^5 o. L& Y
- ESP.restart();
0 X: w" W; G6 T2 O# S: i/ n* \& z - },[](){ Y$ p# |, `/ V% b/ Q; A
- HTTPUpload& upload = server.upload();; P5 z0 d; w7 c% G4 M$ t! K& K
- if(upload.status == UPLOAD_FILE_START){
. _8 v: v* D, @9 L! ~: a! V6 w3 x - Serial.setDebugOutput(true);
8 ]2 y; W; ]( Y! j - Serial.printf("Update: %s\n", upload.filename.c_str());- y4 W' x" F: G0 p+ m
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;- t& x5 C' {8 x1 h8 F
- if(!Update.begin(maxSketchSpace)){
! w* P0 D F( _- U" E e - Update.printError(Serial);" q' I$ j% p2 Y. s. H3 O
- }0 ~8 \1 H4 ?/ |+ n, j4 ~2 \1 a2 ?/ i
- } else if(upload.status == UPLOAD_FILE_WRITE){
- N" P1 l4 ]% f3 K! [0 C - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
& m; R8 o% g/ `4 y7 F - Update.printError(Serial);
+ |" c/ i2 j" z0 Z4 K# N" n - }
" r7 {& [$ i1 ]' L - } else if(upload.status == UPLOAD_FILE_END){2 Y1 p l# u2 k) y
- if(Update.end(true)){5 z+ F c- E d& h4 G. T% M
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);5 v+ s- _+ y0 E5 Z9 J7 A
- } else {
; [) L; C. K0 F: s2 \7 t - Update.printError(Serial);
: |3 W# P; r$ r; |* X$ F5 @6 O, Q - }3 ^: [$ m2 ~, F* Q# i0 s
- Serial.setDebugOutput(false);0 v% J, G* R+ ?( U1 P/ @
- }% [% o4 Q* z5 O+ s5 v
- yield();
$ e3 Z- R6 }+ D) W2 s' x* o$ a - });
2 o* P) o7 [% Y) h9 e4 H - , _8 I( P+ L i
- digitalWrite(2,0);
: Y! T7 m9 A8 B7 b8 J6 h. R) S2 e - mainAction();* R. g' E- a) ]
- if (digitalRead(0)){; p+ G6 m9 p+ ^. ^+ Q4 i
- ESP.deepSleep(0);
% p9 _, H1 [) L# e$ k - } else {
* ~' q/ W9 E+ S8 k" [) t - server.begin();
9 T7 g$ N+ o$ f. o) {- t+ q - }
! D6 x9 ^; Z% G, m K& j - }
6 V) A Z3 ?4 o1 O, q% c - void loop() {9 L: c0 {+ J, I* z. V/ J) ^
- server.handleClient();
0 \7 \- g/ F( @* @0 X) B& d# {1 s - delay(1);8 V2 O" O: b0 |% f( V+ K
- }8 }6 @# p6 P% B: X P1 n- Q
- String doGet(String url){
, z" d2 p: m% J8 |2 } - if ((WiFiMulti.run() == WL_CONNECTED)) {8 p9 c9 \! }) z1 O+ y& @) P4 B( ]7 n
- HTTPClient http;6 j6 h# @ z5 c) i
- Serial.println("[HTTP] begin...");
; z; { E* O* g- d! s2 R8 X - if (url.startsWith("https")) {' f+ r @9 t1 ?" w8 }( d; i: y; ]
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
+ h( u* w0 G# [4 l( Q - } else {& h" H9 c: \1 f4 p1 _' F
- http.begin(url);
! R1 n& p/ `1 X2 b; B' X - }* o3 o# A; |* F+ Y
- Serial.println("[HTTP] GET...");- R; d8 I. P' ?, O2 i) _6 w- ]1 l
- int httpCode = http.GET();( v \% `) G7 N7 J* I" \
- if (httpCode > 0) {, ^' |+ R4 S! M6 O v. g
- Serial.printf("[HTTP] code: %d\n", httpCode);1 a3 ]: @8 P( j" Z3 N" A m
- if (httpCode == HTTP_CODE_OK) {* F& Y4 u# ] n0 I9 x) Y {
- String payload = http.getString();
- M6 o- D* \# q1 U6 l! f! B - Serial.println(payload);' h1 C5 o/ [, C5 L2 y* x
- Serial.print("\r\n");
! C0 h7 ]9 ?$ a" q& g - return payload; `7 |! T/ }0 o& H$ w. A" ~
- }% V1 B1 ]4 ~6 S% q
- } else {
, M5 a& X* I, X# K3 Y7 v7 K" N% B - Serial.printf("[HTTP] GET... failed, error: %s\n",
- \) R ?9 E! B3 Y2 I+ f - http.errorToString(httpCode).c_str());" U8 K2 Q) v6 s! m
- }
& y1 d) ?$ u2 H( o - http.end();
[1 N* Y' W& G; T3 I) q1 _" i - return "";3 G+ M% n n$ s4 z. a. {
- }
4 J. P% a4 X7 P& x1 M/ A - }
+ Y* u' S- q# m - void mainAction() {& J4 }* Q3 H* @+ H# P9 o
- // 发送请求6 \" Y* @$ C. U
- doGet("http://google.cn");! N. b U& W2 O1 V, E8 ?
- }
1 `% [. O7 v+ W6 c
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