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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): K$ f! {; ]5 J8 D
- #include <ESP8266HTTPClient.h>; { Q( K9 k \
- #include <ESP8266WiFi.h>* V7 `$ y2 ]% @! S6 m1 G
- #include <ESP8266WiFiMulti.h>
# w' \4 D# ^8 h6 h" |# r - #include <ESP8266WebServer.h>
K% b' J" N. M& f& a2 i9 }8 k - #include <arduino.h>
! M( k- B T1 g% [& U - ESP8266WiFiMulti WiFiMulti;
2 Z8 f* w* h3 I# w: z - ESP8266WebServer server(80);
+ w1 Z. r ~8 |* w8 g8 W - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";7 P' k0 C, |0 }: {8 M# T I
- ADC_MODE(ADC_VCC);* Q3 h7 [9 H! U! |# E: O: x
- void setup() {
/ I/ q1 x$ u! L+ [# x' R - Serial.begin(115200);5 _3 D) Q) W* ^( e9 s g
- Serial.print("\r\n\n");9 x9 \( J, Z* x/ o! A" U5 D
- pinMode(2,OUTPUT);& ]- X. a X5 z, o
- // WIFI# [& X( B! `) j4 k
- WiFi.mode(WIFI_STA);4 E% \ H1 N, \- q
- WiFi.hostname("Sparkle");
1 P5 G: r1 K6 V7 d3 } - WiFiMulti.addAP("wifi ssid", "wifi password");1 K3 S/ o: ^+ G' W! ?! x, T& _& `2 C
- int tryNum = 15;6 [1 E; n. A9 L& T
- Serial.print("Connect WiFi");$ n! f" P% C' W. C# H$ v
- while (WiFiMulti.run() != WL_CONNECTED) {
6 w7 V3 G. h6 q- Y3 V - digitalWrite(2,0);
1 f+ K8 [$ m1 c4 S- R. m, e - delay(200);
3 b2 i; W6 g4 o0 {& T+ h0 z - digitalWrite(2,1);. U' `6 K( Z5 H5 F5 L" C Z5 v$ o
- delay(300);
, |! `0 W, i4 w# E/ e: `; {- u. h - Serial.print(".");
1 @6 K: K1 t. X5 w2 X5 x( V& v - tryNum--;4 F/ z8 a! g* w. ?- h" x6 e
- if (tryNum == 0) {2 ~6 A8 ?: F D+ W) s6 }
- // 1min
* W) H' Z. f" h - // ESP.deepSleep(60e6);
: E/ D" {0 a$ k- w3 }" U# l' W - ESP.deepSleep(0);) V/ f. V( V5 M. H4 `- S, k
- }/ Z, {5 M* v% Q; }" b
- }7 u- F2 u$ y6 ^0 u
- Serial.print("\r\n");
# F8 @5 o0 u! d - digitalWrite(2,1);
+ t7 G9 R8 X1 I, V* i6 J' Y - Serial.print("IP address : ");8 P8 d+ f+ X- o4 F
- Serial.println(WiFi.localIP());' H+ @- w" x- b0 Q; g3 u% i! s6 r$ W
- server.on("/", HTTP_GET, [](){
3 o& @. u- E+ x/ T - server.sendHeader("Connection", "close");
$ F* l, ^5 o/ D - server.send(200, "text/html", serverIndex);: T6 F; B& q! _
- });9 f* |+ {7 G3 y) z
- server.on("/update", HTTP_POST, [](){
8 Y7 Q7 q$ L t$ m7 K - server.sendHeader("Connection", "close");' t- N z- i i; n
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
$ s F0 j8 A8 z4 k3 k - ESP.restart();
- u6 }" J, F: D1 u4 E1 t' M; n; v - },[](){" F/ T" W0 n" d0 n% g, h
- HTTPUpload& upload = server.upload();
- P G8 Y3 ]9 a2 b+ i4 | - if(upload.status == UPLOAD_FILE_START){
: V* I) g" e8 {! d9 D - Serial.setDebugOutput(true);/ x4 |! c$ Y# r6 t, G6 k' V. U# N3 M
- Serial.printf("Update: %s\n", upload.filename.c_str());2 P* B) J+ x: z1 z6 N
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
2 b0 o' d5 D5 f- r' | - if(!Update.begin(maxSketchSpace)){7 p1 A4 n& `8 T L5 ^- [8 v- m
- Update.printError(Serial);1 ^, T/ ]; \5 u; V
- }
% D" M$ I# v9 m: Y7 X - } else if(upload.status == UPLOAD_FILE_WRITE){% R: m; z$ g( e( p
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){" W, N% V8 D9 l3 Z6 @. C- V7 T t
- Update.printError(Serial);
# }: z" e$ b4 }& z( B) k" W# q - }& l g! g4 [2 V* F
- } else if(upload.status == UPLOAD_FILE_END){
7 W3 }) p& v# k2 T - if(Update.end(true)){/ n1 w$ g6 m/ w6 X( J: b" S$ Q
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
0 \0 \' J5 o" t" G" h - } else {
" k$ ~3 D/ K" {5 V, p - Update.printError(Serial);- x6 ]# Y0 i; h
- }0 [$ j: s! \- F( t& c
- Serial.setDebugOutput(false);8 I2 L' G7 v3 X. ?9 A
- }# Q) P1 o& ~0 b1 c; g- L
- yield();" L# J7 N2 h, _" {6 g
- });& B, e7 b" q: N2 t2 |2 K3 |
- $ z+ L, P% }4 L5 w t2 l
- digitalWrite(2,0);
* O8 D% ]( n, d - mainAction();7 Q2 W4 _2 `5 g1 L" {% k
- if (digitalRead(0)){; o) g0 w( j" {
- ESP.deepSleep(0);( c7 O0 _5 b8 ?5 X6 P- K4 ~' h
- } else {
4 O/ k0 o8 M! [: N* H - server.begin();
3 m* e8 `, y7 g% } - }
( ~! P/ O- h% W7 \' G- R - }) k6 ?% W9 S6 t0 S _
- void loop() {" h$ o5 K/ h. _% R) b; G5 y
- server.handleClient();, o0 S$ ]0 S( B8 B/ C8 ^& N6 r
- delay(1);
* a" n( _: t0 u" k/ q' N - }
' S9 V' u/ X( ^8 }! D+ r - String doGet(String url){( h+ `1 L: R i6 X
- if ((WiFiMulti.run() == WL_CONNECTED)) {' P2 N8 ]; T0 h
- HTTPClient http;; D# v& u6 Z' Z- z
- Serial.println("[HTTP] begin...");3 B* y& C7 ^# q% r
- if (url.startsWith("https")) {
5 q% q- d& V. @& r - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
- E; ]! q( D i. M6 v - } else {. R+ L; M% a" Y2 g
- http.begin(url);
/ ^5 T& R( P1 q% P - }4 Y. i: k+ C, t6 c1 W
- Serial.println("[HTTP] GET...");
- |# }' A; a* k9 H, k - int httpCode = http.GET();
@$ @& L; Z) Q" U - if (httpCode > 0) {7 I# X0 }6 \$ l8 e9 O6 M r
- Serial.printf("[HTTP] code: %d\n", httpCode);
" k( P# @+ [& h7 P& M& Z7 f - if (httpCode == HTTP_CODE_OK) {
" K& {& g1 X3 P$ h - String payload = http.getString();
; c4 u! n/ ?. s i. |2 w2 E- j" ~ - Serial.println(payload);2 w. i1 t- ?0 f6 m( d; ]' h$ `2 H, y
- Serial.print("\r\n");
" s$ M( u" ~3 S/ ]7 O& q - return payload;& T3 x) o/ q* b E' q5 x3 d: ^
- }
8 }* P9 L' Y/ q# }' U - } else {, }9 B. y: n% H3 Q# x
- Serial.printf("[HTTP] GET... failed, error: %s\n",) z, k6 ^# s0 L
- http.errorToString(httpCode).c_str());
% l) T4 ]8 w! ]9 g0 u - }
( M; E/ T- ]7 e9 T @ - http.end();. h4 ~& n6 {+ c) |+ V) o4 Q- f' H
- return "";
$ [( Z5 X( T5 X4 ]% A - }
- x& | N' ]8 Z$ F! O7 @ - }
' [1 b1 t, V! ?) O, m - void mainAction() {
$ Y3 U% j F# P" @ - // 发送请求. l2 `$ U& ?$ P' H% l
- doGet("http://google.cn");
g2 j! l& V2 K p. e2 } - }* A7 |6 ]2 @7 q% S
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