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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)+ f/ c4 a9 ^4 _* }
- #include <ESP8266HTTPClient.h>5 J, Q" W' O2 i2 i* B$ R/ N
- #include <ESP8266WiFi.h>
$ [3 _0 |, g% v: y% b - #include <ESP8266WiFiMulti.h>' |& e! c0 w9 T: j
- #include <ESP8266WebServer.h>+ ]3 s8 u6 Y( D! b5 d
- #include <arduino.h>
$ T, A. A* Y! Y; A- M5 A - ESP8266WiFiMulti WiFiMulti;
$ o9 `+ l2 Q7 w( i+ t- W& c) h3 r - ESP8266WebServer server(80);
9 v9 c6 P; }6 S r7 w* u - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
7 \$ L" P0 L( E2 h% `% Q' U% C - ADC_MODE(ADC_VCC);
& Z: J3 @) C6 X3 d- M( k - void setup() {
% Z; U8 F& @$ V, J2 H6 s6 ?0 ?7 A7 } - Serial.begin(115200);/ f a; u- O- G& l* S( g
- Serial.print("\r\n\n");
( ]1 u. G, c% W2 t - pinMode(2,OUTPUT);' n4 o% Y! n1 L4 V* N
- // WIFI
+ d+ n/ Q1 L$ c1 I: I! K - WiFi.mode(WIFI_STA);5 i+ m$ x! j; G& Z9 q4 z" ^
- WiFi.hostname("Sparkle");
$ ^, \3 q. }0 b" i3 [# J0 J - WiFiMulti.addAP("wifi ssid", "wifi password");
+ J- Q7 C' z% w) R# q - int tryNum = 15;6 L! B" e: }" |3 u: b
- Serial.print("Connect WiFi");
+ s) `! a6 y# q" j: [" h - while (WiFiMulti.run() != WL_CONNECTED) {! `9 g. }% T/ Y7 p
- digitalWrite(2,0);
( c5 p, q8 w. g) _! k) f" ^ - delay(200);3 x9 j6 `3 t5 |* T6 c" r1 g- n& L% |0 s
- digitalWrite(2,1);
# j; J+ \: o' S+ p' |" R - delay(300);) _8 _. B- D" @. [; S: x7 [' w$ M
- Serial.print(".");$ M% [7 V8 i8 c1 W# b h% k
- tryNum--;% t& U6 A) m' u
- if (tryNum == 0) {2 Q! |+ p2 H; p4 {7 B4 r
- // 1min
0 B. G. {" v+ d - // ESP.deepSleep(60e6); t+ f, d- [3 J6 S2 I
- ESP.deepSleep(0);& }9 c5 V! W, z! @, C% ]- |
- }
- r3 l0 h1 T0 v$ q - }
% t3 x! ~- J+ \1 v. _ - Serial.print("\r\n");: G5 ?0 R% L6 C7 }- P2 h
- digitalWrite(2,1);
* y4 Z2 b5 E5 Q# t' G. m4 N# Z - Serial.print("IP address : ");
8 P) K3 \+ N0 g. C - Serial.println(WiFi.localIP());
0 S1 s2 |- }! L0 B - server.on("/", HTTP_GET, [](){
& B2 b% C6 L# g1 E1 | - server.sendHeader("Connection", "close");
/ @" \8 w& }! Z! s+ `6 ? - server.send(200, "text/html", serverIndex);
3 w" E3 Z, e( A - });
. b3 e4 g' a6 [0 D) \* T - server.on("/update", HTTP_POST, [](){
9 o' D2 }' I b; P Y5 R0 T5 A - server.sendHeader("Connection", "close");' L+ z6 _$ j% p
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");8 O" S2 b! @ a0 }' ]0 _( w+ p
- ESP.restart();5 v, ^; Y- Y: x: z9 K
- },[](){- c: g" C0 m) q0 O( d" c( B
- HTTPUpload& upload = server.upload();
& ]$ j. W2 }8 i5 J& i- Y- ` - if(upload.status == UPLOAD_FILE_START){
8 e! p) W. ~: ?! v' M1 e - Serial.setDebugOutput(true);5 ^/ I/ }) Q7 y
- Serial.printf("Update: %s\n", upload.filename.c_str());
( }" @* e: W/ s6 S4 N/ A - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
- n5 V6 p1 Q7 h( X8 v% H j - if(!Update.begin(maxSketchSpace)){
3 u u9 H" G% ?$ S9 z# [ - Update.printError(Serial);
v( S7 u2 w+ L- ~ - } f' e" O! q* t4 A3 r w5 n# a% e
- } else if(upload.status == UPLOAD_FILE_WRITE){
9 c1 h$ p; {1 }, n - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){6 n2 H2 j! T ~9 G+ M5 D- r8 x" S
- Update.printError(Serial);
9 n0 O9 c: D# q o - }
! p2 O: U1 G, ]' D) T( n - } else if(upload.status == UPLOAD_FILE_END){
! G; m/ c0 o* x+ z4 e - if(Update.end(true)){! J; @2 v- n4 s8 f5 @/ s: N* A
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
: M: ]7 w; o, |! V - } else {$ D2 }, n: n. H" u6 t
- Update.printError(Serial);
5 A& f; B/ D: M6 e8 J: K4 K; D! f - }" I! t" b5 Z1 v2 N9 t- q
- Serial.setDebugOutput(false);
) J* E! ]3 w% G B - }
2 C* N7 U2 Q2 i3 v' V: n - yield();, v' I' L0 e- f2 ?# e! S1 M
- });
; C6 s+ c6 E0 Q4 ?! I -
$ X. [/ ?* k; G# L7 G- @; @ - digitalWrite(2,0);
& A! l8 r9 `1 b7 q3 u' Y - mainAction();
/ V5 \: e2 t1 h z - if (digitalRead(0)){1 O' |; M0 \) F. z4 k/ }& `
- ESP.deepSleep(0);
9 w. g( `8 q8 Z - } else {
* z9 }9 s1 S% f" T5 F- a- n - server.begin();- Q/ R; r7 ^- p& Z0 N
- }
' r6 a/ l5 R2 H* b. H# C) W - }! u: q8 g5 N- @) v. e y5 r
- void loop() {; u# b. Z0 L2 N# ?" R- ?8 b
- server.handleClient();
+ o4 Z9 q& U: \ Y4 M! |1 C) S - delay(1);' D5 {, e/ T' f5 L1 P! Z3 \# A5 Y
- }
) w7 D6 Y A% B/ J - String doGet(String url){" E' F' O/ I7 m
- if ((WiFiMulti.run() == WL_CONNECTED)) {
1 y2 w& b8 j! D( E2 n - HTTPClient http;2 Y- j& ?2 k: w; F! i6 W$ {7 h
- Serial.println("[HTTP] begin...");& P# ?0 q% f' q
- if (url.startsWith("https")) {, p2 y4 M. k2 g* E
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
6 _! ?' R& `1 ^& D/ B - } else {
: l9 U' \( T( I7 N2 { - http.begin(url);
* r( D% @3 G- U. X: t! r8 @ - }" @5 i1 U5 l/ Q' z* X
- Serial.println("[HTTP] GET...");; J, G( {7 c/ i7 Q% P
- int httpCode = http.GET();" F; p( A0 v& M1 G
- if (httpCode > 0) {
! A- W1 Z' B, x" f4 L - Serial.printf("[HTTP] code: %d\n", httpCode);3 N& m) ~, K; [9 P! M/ Y
- if (httpCode == HTTP_CODE_OK) { Q1 x4 l$ z9 A2 ]
- String payload = http.getString();, g: L4 a- z# T7 {
- Serial.println(payload);
" N- \! l T. _# v; x - Serial.print("\r\n");' Y1 F5 _' l, X! p$ T% N5 i; v: W
- return payload;
0 U/ T0 W$ D, ]! V( h9 x' K - }- R; w9 b: `+ P5 v) G
- } else {+ O# p% A1 T4 ^9 f
- Serial.printf("[HTTP] GET... failed, error: %s\n",
+ N4 `2 e, T( V5 i - http.errorToString(httpCode).c_str());
4 D! X) c! m* i - }8 z0 J0 |, ]2 B! P
- http.end();
8 C$ k3 ~6 ]5 Z3 j - return "";
2 L( k( i: c. K, g% u- J - }9 X/ O, f5 m- V+ a3 Z, i$ z8 N3 O
- }
* J& G$ Q+ u! Q; H7 o( d, m - void mainAction() {# q6 F' ?% N# i r8 z
- // 发送请求
! c6 _) }% Z+ k+ v - doGet("http://google.cn");
3 p: C: A8 l5 \9 m - }- J# I7 A( u9 S0 d( l1 g4 {& e
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