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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)
2 _: \9 e! ~. e( D- V- #include <ESP8266HTTPClient.h>3 m2 G2 e# \' @, g2 H$ H* n$ D1 }
- #include <ESP8266WiFi.h>. e. t/ _3 _$ p" z$ \
- #include <ESP8266WiFiMulti.h>. |6 q2 U# F# N
- #include <ESP8266WebServer.h>
3 g1 b7 K7 {4 Y. w5 ~9 H7 C( M - #include <arduino.h>
. {# H# }7 I1 i% E# ~ - ESP8266WiFiMulti WiFiMulti;
/ F' z9 r" C+ Z - ESP8266WebServer server(80);
0 j5 `; X2 [3 l# G. I( s - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>"; v7 O' A. [9 z# z; \
- ADC_MODE(ADC_VCC);
- }8 ^$ i- D3 A% ]* M) n - void setup() { @. X0 ?' j& ]
- Serial.begin(115200);
5 D+ z% k- q; g* B. M& [' F: Q - Serial.print("\r\n\n");
) @: h# ~! o& T! Y t8 [" | - pinMode(2,OUTPUT);- d A, f' @" `4 a' c- e
- // WIFI- v, O9 i# }0 X
- WiFi.mode(WIFI_STA);1 k! N# `' a/ S: ]# }* {3 l
- WiFi.hostname("Sparkle");+ _3 m* F2 V M) u8 W
- WiFiMulti.addAP("wifi ssid", "wifi password");: k! Z8 ^. v, m: r7 s4 D
- int tryNum = 15;
% I3 f: I- E; @8 O% m) e: Z; ? - Serial.print("Connect WiFi");
- |5 G# _& X. v* e+ n9 x/ l1 C/ [8 ?9 N - while (WiFiMulti.run() != WL_CONNECTED) {0 v; C9 A* E+ c: Z# E _7 S
- digitalWrite(2,0);" p) D) [" U3 W8 O
- delay(200);" A, m* @# t. V& X* k
- digitalWrite(2,1);
* S6 B4 O9 Z6 j9 @ - delay(300);
3 k, P* R' W* C, `6 ^ - Serial.print(".");- p2 z1 w1 }: [6 L
- tryNum--;' E2 \. h& i$ @% d
- if (tryNum == 0) {
3 b x$ ]2 O8 I - // 1min5 Y+ l) C$ p& @4 \- M
- // ESP.deepSleep(60e6);
# k5 Y. T; z( O0 |+ j$ \# q2 p2 P - ESP.deepSleep(0);
) @2 {; {) K( O+ D7 J - }9 g3 F. q" D) m- C. m# X
- }
g9 k; Z# {5 |% n+ Y8 v - Serial.print("\r\n");/ v# e0 N4 Y5 X5 N ^. r! O
- digitalWrite(2,1);% X- ]3 A" V8 A9 V( S
- Serial.print("IP address : ");
# T8 `, g5 u# N8 d3 h; Z9 T - Serial.println(WiFi.localIP());, k1 t1 J1 u' m. I" a
- server.on("/", HTTP_GET, [](){. z8 S# K4 l; g6 v, ~
- server.sendHeader("Connection", "close");
9 T8 r8 J' I9 e - server.send(200, "text/html", serverIndex);
; A: G6 l b1 p9 v4 M - });% e/ H+ x. B: L) m. A; Y
- server.on("/update", HTTP_POST, [](){' M$ Q* S: Z4 d8 C) T" k5 C
- server.sendHeader("Connection", "close");! F P! u" |) E: M4 T6 q* q
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
! Q* u: S0 [# b1 Q - ESP.restart();
7 [2 w! i5 W: H# ^5 H7 A4 x - },[](){, v! n" h# x% N/ z, v, k" W i
- HTTPUpload& upload = server.upload();
, W- u S# M$ |% y2 m - if(upload.status == UPLOAD_FILE_START){$ ~& J- x8 q" d' K2 Y
- Serial.setDebugOutput(true);0 _7 x* G( i5 z4 l
- Serial.printf("Update: %s\n", upload.filename.c_str());
b- R/ i, a4 S4 G4 S: _ - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
$ u- r4 U- v) \, V; K9 z2 E - if(!Update.begin(maxSketchSpace)){
) x* s3 K- w$ z: q0 n - Update.printError(Serial);6 u; N& ?9 ?9 ?9 n- {* j# R. K2 h
- }, d# B0 O) [; B5 x. v2 ?
- } else if(upload.status == UPLOAD_FILE_WRITE){* n0 W) |: F2 s
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
" C5 D, a1 {) S% n) d - Update.printError(Serial);8 l m6 |. i. K$ I# d- a
- }, v0 G# G2 [+ Q4 @
- } else if(upload.status == UPLOAD_FILE_END){
% D" f( a1 F \" G! B - if(Update.end(true)){: `/ O- ]4 L7 b7 Q- a
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
% i- D" M# F" k- B, l - } else {, L* _5 `" L# k" t; U m) a9 R5 ]; ]: u
- Update.printError(Serial);
/ Z' y& U2 v* @0 B - }& ~7 T4 {- k; _
- Serial.setDebugOutput(false);7 G) Z4 B# L" k$ d, F+ c1 {$ {
- }1 l3 C& i/ t7 K- v# _ F
- yield();
. j0 w) w. r& }0 ?6 h - });
r6 r# x. ~2 N, S( B: F - * q' q/ s, {, O/ ^: b
- digitalWrite(2,0);
/ I6 E* i& _3 |( l - mainAction();
; A9 u" F0 u* b% ~ - if (digitalRead(0)){
6 q# N" b" v( l6 K7 @ - ESP.deepSleep(0);
1 P( R6 B5 y& R/ d" R1 J9 z. r - } else {3 Z& O! M' w' {
- server.begin();
7 n9 v" S1 u7 d3 q4 u0 N/ t3 X - }8 q: i! ?) ^* V. g1 h9 R0 H: u
- }8 p, H0 L$ e* }( ]) q
- void loop() {2 } @; i$ B! k/ C* C9 C
- server.handleClient();
4 z7 {# I+ I+ l* N, p' n% R - delay(1);' `2 U2 x% h" y: g6 u0 |" W+ W9 P7 ^
- }
2 |. z" }1 z/ q2 v, [8 k - String doGet(String url){
3 a9 L+ t% L3 q3 Z9 ` - if ((WiFiMulti.run() == WL_CONNECTED)) {
5 u0 s: c( w C } - HTTPClient http;
8 x/ A, i. B6 A, D; h6 U - Serial.println("[HTTP] begin...");. n* {7 h/ y9 o3 m
- if (url.startsWith("https")) {
& { D2 u- x7 \. b8 @ - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
& o* x9 I) u. T# u6 C+ k1 i) O - } else {
+ |# p; p) a$ B& N- M - http.begin(url);: m* M- m2 z$ L9 u7 o
- }) R8 H% R. n3 M0 R
- Serial.println("[HTTP] GET...");
9 i: T5 |0 M/ o; I - int httpCode = http.GET();1 d% m- H- f0 x8 e- q/ S4 k. k9 B
- if (httpCode > 0) {
$ [, ]- D3 d# L$ J3 Q1 a) y - Serial.printf("[HTTP] code: %d\n", httpCode);4 _4 d# E- o: G; u# O. e& r
- if (httpCode == HTTP_CODE_OK) {% }3 `2 Q$ M- _: a/ S
- String payload = http.getString();
0 I, d% P& O( C$ q/ E! l! Q. I! C% n - Serial.println(payload);1 ~' }: ~) `" M3 R9 z& D; i8 r; X
- Serial.print("\r\n");; k% _3 E+ R# ^4 C6 m
- return payload;
4 q/ m7 R! _+ `6 M - }
4 s$ P# Y; ]0 a - } else {' o c: v& a2 L$ _9 B, F# q
- Serial.printf("[HTTP] GET... failed, error: %s\n",
+ Q% _2 p1 f, A+ n9 ^+ {9 J) U' M - http.errorToString(httpCode).c_str());
' i+ j* d3 I. k" @$ w8 ] - }
6 P3 U; r9 t. D; H& K [ - http.end();9 [) x5 \# {& e+ }) u1 {
- return "";
# O& C0 ]. L/ a( ]; V- Q - }
; u' F; \7 h9 i6 D, Y/ i8 w6 h - }4 w, S6 K7 {" G( J* a/ {, Z. a
- void mainAction() {) j% P5 s8 F$ O: ~* O8 S
- // 发送请求5 \# q8 e3 F9 |# s5 B$ p9 S% ]
- doGet("http://google.cn");
$ v! C3 m+ _5 a# ` z - }; C/ A3 T( b2 B. ]* m0 s# g4 K
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