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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)
$ j8 M- r, q+ J% P: l1 G- #include <ESP8266HTTPClient.h>
7 y% ^! \ K$ ~7 {3 s. h - #include <ESP8266WiFi.h>
) g* O/ N5 V8 ~( N8 a6 n0 i - #include <ESP8266WiFiMulti.h># @2 D3 W" }- u
- #include <ESP8266WebServer.h>
0 B% g5 k+ C7 {# A/ ]$ Z - #include <arduino.h>0 `: w! f C1 Z$ l9 s$ V
- ESP8266WiFiMulti WiFiMulti;' O5 k: q o8 O' @" j
- ESP8266WebServer server(80);# c$ [8 B; h4 l1 f7 u9 h2 R
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
+ d# [6 @& p( y7 y - ADC_MODE(ADC_VCC);* O! E0 C1 B$ t" N1 }9 S8 s
- void setup() {
; \5 M2 ?- y* t" O Z! k2 K# @) l; O - Serial.begin(115200);
& [4 y8 S& P* M - Serial.print("\r\n\n");6 {" @9 p U; |- q# ?
- pinMode(2,OUTPUT);2 I z0 V" ?! j1 S+ ]
- // WIFI
1 g4 t6 K: {+ ?' v - WiFi.mode(WIFI_STA);! ^: Y- o$ e" ~4 u( U2 V) X) F W
- WiFi.hostname("Sparkle");7 J0 z/ l5 G, x0 w5 ^6 [) M1 e7 i6 q
- WiFiMulti.addAP("wifi ssid", "wifi password");" v1 r/ ]8 r/ ^; C
- int tryNum = 15;# ^# F* U5 w: g% \) \
- Serial.print("Connect WiFi");* {% }3 `1 t' J9 o3 c
- while (WiFiMulti.run() != WL_CONNECTED) {/ u6 V% j' g1 U6 s
- digitalWrite(2,0);3 h) [9 O; a: i/ T
- delay(200);3 j% j7 y8 Q+ W9 c: Z
- digitalWrite(2,1);
& H' ^6 R1 J; W' v b+ j, [( j - delay(300);% B& Q3 j0 p7 I2 J
- Serial.print(".");9 \3 D9 c0 M5 ]; U9 f
- tryNum--;
9 O/ x6 Q& |3 ? - if (tryNum == 0) {2 @& r# J }) J' n
- // 1min
% Y! h4 W/ m. ?. E! M0 g - // ESP.deepSleep(60e6);! O6 c1 T* `* T% f
- ESP.deepSleep(0);- T8 E# ~. R; o( L, R$ e6 x! t
- }7 d1 _7 N; Q1 A( `; }
- }) N7 e @7 L' e1 m& A/ c' |, @; `
- Serial.print("\r\n");
# o, g9 [" X8 O3 o9 _$ H - digitalWrite(2,1);
4 p, M/ H& h5 e! I# k: b3 w - Serial.print("IP address : ");* E$ ~% b1 u* `; }: J- s8 b# o' X
- Serial.println(WiFi.localIP());" Q2 _. q7 K; ~* w" y
- server.on("/", HTTP_GET, [](){
! d$ y5 v5 J8 ~& X3 k - server.sendHeader("Connection", "close");7 P% Q9 C' L, a* n+ U2 c, t4 f
- server.send(200, "text/html", serverIndex);+ [# a! c/ r& _) I
- });# a$ a+ R, f& e" d+ l
- server.on("/update", HTTP_POST, [](){8 C. ^+ C u- e2 R
- server.sendHeader("Connection", "close");
: h& v7 H1 n' D - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");! s$ M t: v' Z# r- U
- ESP.restart();
6 C7 G. b, D3 E - },[](){
& J! E/ T' a" v8 j4 K+ ~ - HTTPUpload& upload = server.upload();
- o' s( N& w0 U# N$ G6 @ - if(upload.status == UPLOAD_FILE_START){* Z N7 @3 Z' T) ^7 {, H. {, E
- Serial.setDebugOutput(true);0 U, U) k- ~- i! a$ `( _
- Serial.printf("Update: %s\n", upload.filename.c_str());
. j! L8 t7 t8 e/ H# ]7 N# _2 U - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;6 _, D, e; m# E+ ]- j/ B8 g. w
- if(!Update.begin(maxSketchSpace)){
; _' _8 b" w2 O8 U - Update.printError(Serial);
! s1 k+ _0 e8 J% q0 T n+ G' z8 ^ - }
5 [3 n' `& f G+ t* ~( o M, g; y. X - } else if(upload.status == UPLOAD_FILE_WRITE){. N, U3 _: v# I3 T0 ^5 }
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
2 V$ g$ E$ J# x - Update.printError(Serial);$ K2 g/ z) n$ E* x( y+ t
- }
7 T( a8 Z! v( Z. W8 Z; g8 L1 y - } else if(upload.status == UPLOAD_FILE_END){ ^: W& K( D7 d. K( k
- if(Update.end(true)){
) f# t: W) t3 T - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
7 v. `7 @! f3 R/ i - } else {: A1 D- o! V& Q: i
- Update.printError(Serial);
" s+ h# s5 C* t" ~- V' o- h - }. S& q' ]) [+ n7 T
- Serial.setDebugOutput(false);4 A/ h$ y7 w! b: d3 R, U
- }9 w& x) l8 p1 B" M1 ]0 B
- yield();
K5 s; z4 T% I2 t - });
2 y% k! ^/ ~: f8 f - 3 R& F5 t/ D4 A& b+ G
- digitalWrite(2,0);) S. z' p9 X. Y# B0 U# Q
- mainAction();
$ G4 W h, x' {* B; \: V. s - if (digitalRead(0)){3 X# H3 r2 }. y) }
- ESP.deepSleep(0);
p0 W/ T0 n" W: P0 x7 @ - } else {& G/ x; E' X3 H7 j
- server.begin();
5 p/ x" `, Y) y: N3 z% Y ]0 n - }/ u7 @* F+ b5 S/ z2 Q: g5 \
- }$ `) _) p T2 f+ R9 o7 ^6 E
- void loop() {
' v" A( m* A! N( o - server.handleClient();1 B5 e% O4 Y5 n% b' e* s$ \" `( T/ X
- delay(1); X- X, C. H) \% A% i2 N
- }- w# @: n- l, U2 I* p' ?& n
- String doGet(String url){
3 G! c) b8 Q- ~/ i% `! b - if ((WiFiMulti.run() == WL_CONNECTED)) {
- p4 f1 Q. N7 M8 d- g% f. y" C - HTTPClient http;" ]' `3 y0 }+ b
- Serial.println("[HTTP] begin...");
9 E+ {- Y: Q; X- K! A& O - if (url.startsWith("https")) {
- ` p& x, |( j2 x) \* n3 H# g - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");- m6 v- x: l+ j: _) q0 {
- } else {
+ d( ~7 U2 D" [# Z4 B - http.begin(url);. b& z8 ]2 T: @3 n: `( }
- }
7 h, y* C8 M1 {* {1 }! |9 I - Serial.println("[HTTP] GET...");
; J, a% k: C7 `) f: e% l/ R - int httpCode = http.GET();
o* F& X! A# t - if (httpCode > 0) {3 v+ U3 c% X: E; M! Q( P5 J* B& g
- Serial.printf("[HTTP] code: %d\n", httpCode);
+ o! [: x9 s( l* d) p, q& N5 Z4 v - if (httpCode == HTTP_CODE_OK) {# F/ ]2 z4 r9 Z
- String payload = http.getString();
. ]' o! A. o: w6 `' V- a - Serial.println(payload);
. a; o% b: [8 Z! @' W6 c* e/ a$ V( k - Serial.print("\r\n");
* j' r5 L& N( S' C8 v; l - return payload;
1 J/ f, o# @) g3 _ b+ c& F2 z - }
" G( {( D6 n' @) V. ] - } else {" m3 m8 [$ O. v+ c
- Serial.printf("[HTTP] GET... failed, error: %s\n",' p5 j" i8 L8 o! G2 b' m3 F
- http.errorToString(httpCode).c_str());, E: \: @$ o( z* x0 n
- }. p/ I2 Q5 c& Z, q8 Z) f+ l Y
- http.end();
( B6 _3 d) w5 K7 N( q - return "";
: Z" H# [5 Q7 Z0 {6 B5 w8 d+ | - }
3 W' u+ V7 b, W6 i2 v - }3 |- S& f1 z, d& X9 R
- void mainAction() {6 v4 E( q1 w/ L a+ P; V" t7 R
- // 发送请求
% Q4 h" {. B! m C: T: e: s' L! i - doGet("http://google.cn");
. V! b0 a6 U# X - }
5 p. K0 b$ |. ]% Q" h4 Z
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