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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)" W [# T) I# J/ x. E9 e
- #include <ESP8266HTTPClient.h>( G7 i" N+ V+ H4 }9 Y) X f
- #include <ESP8266WiFi.h>
: ~! L _, N. Y/ ?# R5 E - #include <ESP8266WiFiMulti.h>
5 H. O+ ]# K) B - #include <ESP8266WebServer.h>2 c- ?+ p1 V+ R" Q$ e) @' C, W4 u
- #include <arduino.h>$ W" X( B# @% ?5 C* @+ h) u
- ESP8266WiFiMulti WiFiMulti;$ ~( M- W# o Y' `# r% U' g
- ESP8266WebServer server(80);- n+ j Q. F% w1 ?3 o8 O+ m8 ?
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";- R/ t" \$ l7 b9 ~3 ?' X
- ADC_MODE(ADC_VCC);
$ i! c$ o9 E, x# f: t& U$ k8 I/ n7 E) N - void setup() {
# a+ g8 W1 y0 F - Serial.begin(115200);/ J( a! g, G& q, l; d) ~, G+ j% j
- Serial.print("\r\n\n");
8 W* Q' F7 Q" _* }6 o, \& R - pinMode(2,OUTPUT);
) A. p! J+ J9 X+ _. a - // WIFI# _+ T- c1 R' ?! I {$ Q$ A
- WiFi.mode(WIFI_STA);
0 g: S' ?% ~5 }% ]6 Q* D8 l! T - WiFi.hostname("Sparkle");8 F) B: y/ Q9 ^' E [0 \" I- |( I: k7 n
- WiFiMulti.addAP("wifi ssid", "wifi password");
9 e7 o0 g. }1 X! j - int tryNum = 15;
% J7 S5 w& k2 J; k6 M - Serial.print("Connect WiFi");. f4 n6 v: [/ B' k* Z& |
- while (WiFiMulti.run() != WL_CONNECTED) {# T# y* e0 {7 \% Y4 z5 P7 {5 e c# N0 a
- digitalWrite(2,0);
3 _) m. G* J! Y- E - delay(200);- I$ }: m, u8 T% J7 e
- digitalWrite(2,1);
% X/ o: ?8 e. _ - delay(300);
! I7 P$ R( u9 a* \0 T* } - Serial.print(".");
6 g5 _/ J4 p& E9 k3 ^0 j$ V - tryNum--;
6 I: k- G3 q; k9 u7 ^* ?9 }$ X9 Y - if (tryNum == 0) {
) f* l; l8 X' F4 W: w - // 1min% }: A! M. i u+ l
- // ESP.deepSleep(60e6);/ e/ B# t* Y) }4 ?- v
- ESP.deepSleep(0);4 N3 P! m% I0 t7 \$ R A
- }
0 @& x6 E6 v+ G3 p; E - }
/ b! C& x3 _ O# }) J - Serial.print("\r\n");, z. C& t2 [( Y( @, E% f! i
- digitalWrite(2,1);
6 x, E6 f" n* y( S - Serial.print("IP address : ");
* z5 B5 a( b+ e8 H. E# [ - Serial.println(WiFi.localIP());% i: Y) ?; [+ @0 C9 i
- server.on("/", HTTP_GET, [](){9 _4 P. a; q0 l$ K
- server.sendHeader("Connection", "close");
# ?6 E& b& j+ _ - server.send(200, "text/html", serverIndex);, O# n$ j# U: b0 q: O1 U
- });
8 c: B- d9 E) _0 k' r9 r - server.on("/update", HTTP_POST, [](){
* w0 l3 e, R& Q% a$ H; B* H+ O - server.sendHeader("Connection", "close");
+ o4 p3 Q0 _7 i/ F) y7 ^9 v. ^ - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
7 |4 ]: | z2 E+ \* e& l - ESP.restart();
% g% Y3 N, M# s; c - },[](){6 A# f# d& A, Z6 a0 H( X
- HTTPUpload& upload = server.upload();$ c, A, D! d: Q* O* K
- if(upload.status == UPLOAD_FILE_START){
7 T, l* G C g' X: o- u# `+ U - Serial.setDebugOutput(true);( j" _; i( V n0 W" _
- Serial.printf("Update: %s\n", upload.filename.c_str());
* t8 ~0 l% L! S) P - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;, v/ ~6 R0 |1 _7 R7 p, p; O6 D
- if(!Update.begin(maxSketchSpace)){9 n+ V. f* k$ G1 E0 b* h
- Update.printError(Serial);4 T: i- x2 s0 Y' {; H
- }
7 ?- o9 @1 g: P& t6 U6 b" D1 X+ ~ - } else if(upload.status == UPLOAD_FILE_WRITE){8 G2 z7 j- z9 h- t4 q2 j$ d
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
4 z* ]* P$ h1 @3 x4 U* V. e* E/ _ - Update.printError(Serial);( Z o: i. o' g. I; U, S% R
- }
! B4 o6 T2 R; e7 W7 H$ n - } else if(upload.status == UPLOAD_FILE_END){! k8 x1 {) O" z& y5 L
- if(Update.end(true)){+ I' T% `3 ^. {6 Y8 l* w
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
% K9 y5 `* H1 k- I8 `1 B - } else {
' o( ^( B, |# _: x - Update.printError(Serial);
- c9 V# H( b9 b - }( ^5 o# b; O0 i2 N' ~* V5 u, a
- Serial.setDebugOutput(false);
* U. F+ @+ C H# j - }8 Y# H( t( q7 m+ A+ R9 w
- yield();. L( P2 i. Y' i+ A7 g/ R& a
- });
: M# {6 m" ]3 W1 x) m - 1 {# H+ n* Q) I) b2 M$ G
- digitalWrite(2,0);
2 y" G) H% e7 [" E! v$ c: _ - mainAction();
! Y0 L2 O8 P, Y& j - if (digitalRead(0)){
$ K+ K' R1 ?: M5 K7 i - ESP.deepSleep(0);
7 l# F: X2 [7 `8 U - } else {
" V1 f3 H: k+ [+ [' U2 s/ G& o - server.begin();/ }% P, |' N! _, z, Z3 d
- }" O2 s ]+ Y6 `/ l
- }
) p! W( r* r' I( |( w - void loop() {
8 S7 G& E0 I/ g5 ? - server.handleClient();; q' \* z5 I* M, c2 M
- delay(1);! l0 ?# J- ^- V3 P4 o- C4 G' G
- }
) C: ^9 S' v' S) v! E- D1 { - String doGet(String url){* A/ M6 p! d/ }( P& `7 v
- if ((WiFiMulti.run() == WL_CONNECTED)) {
- m+ B, z0 k+ q7 I& ^; Y - HTTPClient http;* Y9 D4 W" m ?# @2 B2 j
- Serial.println("[HTTP] begin...");
: _( ^2 N7 a1 a: K - if (url.startsWith("https")) {8 a7 w5 u* O6 e* M4 T7 t5 j. Q
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");) E3 i; R* ]3 ?4 M t; G
- } else {8 M$ V" h/ L+ ~' ~# s: {* E5 d6 D
- http.begin(url);! `" R/ p1 p2 F. `
- }
- g) h* g& O- m1 H - Serial.println("[HTTP] GET...");
6 \( Q! D# C( o" b( N1 @ - int httpCode = http.GET();% F2 X4 D. l. T8 U# r5 D A8 @
- if (httpCode > 0) {
3 K; \1 j# ~3 m# Z1 N R - Serial.printf("[HTTP] code: %d\n", httpCode);
5 \" v2 r) s5 p - if (httpCode == HTTP_CODE_OK) {$ D( e' K" g! u3 q, L
- String payload = http.getString();4 e: ]3 h+ v/ L
- Serial.println(payload);+ Z; k: ?: M7 M1 V/ t" V# A# p
- Serial.print("\r\n");% G, p6 u9 s/ {( G' `
- return payload;* M: n) u& w1 H( W
- }$ a1 {) d% t, }) i' l, D
- } else {
# L+ S1 O7 V+ a - Serial.printf("[HTTP] GET... failed, error: %s\n",
0 l) u3 J( [+ y7 { - http.errorToString(httpCode).c_str());1 _/ @, y: X2 q, B& m- _ l9 [
- }
/ L0 x; t9 }0 e r1 D- P; h2 ?0 ? - http.end();
. a p) n0 u7 P# ^- E- W- H/ q' G - return "";
~6 M% h ~9 J9 I - }9 I0 P- e- G/ p; E
- }
. a: y' A* {/ g& W) ?$ ?% H - void mainAction() {& K" z) d$ i1 J3 E# v9 G
- // 发送请求
! Q3 \1 m( C* C6 U! ~7 ~: G- [6 X - doGet("http://google.cn");. y7 q9 o0 I8 W- j. M* V
- }
5 Y, r3 E( v) N7 g
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