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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)( z7 u6 ]8 F" L: X. k
- #include <ESP8266HTTPClient.h>6 ~$ W+ y. V4 g) b# N
- #include <ESP8266WiFi.h>6 Z4 P) w! S* }: R7 p1 c
- #include <ESP8266WiFiMulti.h>
4 {! z: t" E9 x( w - #include <ESP8266WebServer.h>" r5 O* f, L1 `& w: q
- #include <arduino.h>: V9 k; Q% |7 b6 [6 @1 I: i$ H
- ESP8266WiFiMulti WiFiMulti;
% O5 s4 _ n+ R; ~% b - ESP8266WebServer server(80);/ s# B& Y. t9 m) ]3 G/ h _
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
& X2 X |5 a' T7 a; K, m6 y- P - ADC_MODE(ADC_VCC);# k. s0 X# n2 }4 a
- void setup() {9 l6 E8 z @$ Q; @( D: t& }
- Serial.begin(115200);/ o- J, |! g# H/ V, x
- Serial.print("\r\n\n");* R: v5 m/ X: i# J/ {
- pinMode(2,OUTPUT);
" L9 }& @2 W+ E( c% n - // WIFI
0 R7 h2 E% B2 J0 z3 l5 g - WiFi.mode(WIFI_STA);+ z% X! Y0 {7 O T
- WiFi.hostname("Sparkle");( [: o& ?% {# K+ g7 m+ \$ ^
- WiFiMulti.addAP("wifi ssid", "wifi password");1 ]/ ^! X6 e0 \0 B8 }6 v1 ?4 r
- int tryNum = 15;
) S0 G1 N5 w" T; }! q - Serial.print("Connect WiFi");
3 u6 H) l6 o* s) N6 o - while (WiFiMulti.run() != WL_CONNECTED) {
: D7 a- S: y9 ^ - digitalWrite(2,0);0 M* e! r$ q5 J h2 {
- delay(200);
- I9 a- p2 B* X( |6 [; o - digitalWrite(2,1);
' Y% U; e2 D n0 Y7 Q) K5 e - delay(300);
- R1 c; i+ \7 v2 L( d* c1 \3 a f - Serial.print(".");
3 m: C- {$ W% i1 X - tryNum--;
k' F$ i, m) L; [# a9 o! F6 o7 \, y - if (tryNum == 0) {
) x) G0 v' Z& z* O - // 1min4 T% Q( G& k: g. M
- // ESP.deepSleep(60e6);# q. R% l7 O/ W9 y% J
- ESP.deepSleep(0);
6 x' [# Y' C3 d- Q - }/ V: d" _3 x- M) L8 a) S
- }
; Z! z M! M9 Q7 e! ~- j8 ~ - Serial.print("\r\n");5 J, h& d: ~2 M2 c' J- B3 u
- digitalWrite(2,1);
8 |, b, s) _; Q - Serial.print("IP address : ");- `3 i( h4 y8 ^; [8 W J, N
- Serial.println(WiFi.localIP());+ l7 m8 F" i- ]+ W0 t
- server.on("/", HTTP_GET, [](){( C7 o$ R* n. K+ N1 q6 E; x; ~
- server.sendHeader("Connection", "close");
4 Y X: j9 C9 g$ c+ @3 M% g6 J - server.send(200, "text/html", serverIndex);
9 R3 n4 c9 M6 i' o; h# n - });5 t' y" L7 O8 q
- server.on("/update", HTTP_POST, [](){& C3 B; ?4 Q7 c( I; g. s
- server.sendHeader("Connection", "close");" d2 S; s# ]; F* R; H
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
* P/ M& k9 P& A% i: h6 P' i( u - ESP.restart();
3 a- P+ m3 k; v - },[](){
( u0 y" n- h& j4 J5 j3 F$ h1 i/ W - HTTPUpload& upload = server.upload();
$ r6 k( [) `* `1 I - if(upload.status == UPLOAD_FILE_START){
2 s! ^% u& t& e. T2 ~% d( s) U6 ` - Serial.setDebugOutput(true);- k5 D8 Q. a4 Y6 I7 i* x* {5 x
- Serial.printf("Update: %s\n", upload.filename.c_str());
[- |( t7 B+ G2 p - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
# `1 Q4 J4 j7 d$ b: P3 d - if(!Update.begin(maxSketchSpace)){
, j% z& w9 S0 w* D - Update.printError(Serial);
|- Q# G) _8 L - }
A9 i2 l7 R9 o$ e4 u( \+ Z! C" o0 f - } else if(upload.status == UPLOAD_FILE_WRITE){
* |% g. [7 |1 V; e: z8 | - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
4 a" l! Y- L) D8 Z( F& @. H - Update.printError(Serial);
2 j4 A/ c2 v! T+ o# g - }
0 g C9 c8 w' s - } else if(upload.status == UPLOAD_FILE_END){
( c/ V; t& f3 u$ H - if(Update.end(true)){
/ T2 P6 i* S1 \: {2 H, m1 _2 R - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
/ _9 N0 D8 m, v. X - } else {
2 N" Q4 R' w: I# `/ B - Update.printError(Serial);
5 s8 _/ |0 D2 F' T5 N - }
9 n4 T( q" E5 `; a0 R! O/ a& w* l+ ?, E - Serial.setDebugOutput(false);5 C" W/ s- b! ^: y# T1 B6 l5 _/ i' B
- }, X A' i& L. j) y
- yield();
7 Z6 M+ M7 P* g. Y7 a# H/ D9 o( r$ G - });, m- M$ V6 U7 b" y. M2 i: [
-
! G$ ?) L% L$ H4 b C% h - digitalWrite(2,0);
( |4 L t) E6 l4 ~. W/ p% ` - mainAction();% A* B; f2 D% O: u; I7 L
- if (digitalRead(0)){2 {& v! t; z! i( w L* T N
- ESP.deepSleep(0);% c# v. z# l5 H3 Y
- } else {
: I5 B- r* p6 _; _: P7 T0 t: j - server.begin();$ D! o) |! e2 ?( z/ q' _! C
- }
1 M$ e: O, l4 k5 y - }
8 U/ M9 B& N% m6 x - void loop() {
, F4 v3 s9 ^7 E r" v* @ - server.handleClient();
( }. V+ o g( }6 w- R - delay(1);
: b5 V. j0 s) y9 W - }- d! l, p# m8 p6 v- Z2 T! p2 v. W
- String doGet(String url){
5 s& A, a# y1 x - if ((WiFiMulti.run() == WL_CONNECTED)) {
: l# D2 w( a6 k' T/ v& y- i - HTTPClient http;& {3 m3 d( `. g; S" o
- Serial.println("[HTTP] begin...");
( h" B. [% f+ ~+ q% j, p5 y! K - if (url.startsWith("https")) {+ q% u6 [3 e/ K! u: B+ G
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");' O( g3 x8 {+ |# H
- } else {
: Z9 f# f) u: T+ x; v. o+ [( o# B - http.begin(url);
/ }' G& C! h$ @* c/ _1 B& | - }
6 r/ L4 d6 u _8 z - Serial.println("[HTTP] GET...");
0 V/ c# o& W% `# K - int httpCode = http.GET();
! m) a) F% x3 j7 s, ~: R - if (httpCode > 0) {
B1 j1 x5 |: V/ Y. P - Serial.printf("[HTTP] code: %d\n", httpCode);5 g4 U" S9 ]8 L/ }
- if (httpCode == HTTP_CODE_OK) {
7 ?/ s v! j& w9 E- G/ I - String payload = http.getString();
, ?6 B) F& p! Z. H4 K, d5 C9 X2 o - Serial.println(payload);! ^, f3 T& u; e W1 ^0 l6 v) m
- Serial.print("\r\n");, c$ o7 b- r( s) n |% Q
- return payload;
, V- f; z) H9 H. X( g - }1 K; `9 X: Y/ @0 {' ^
- } else {
2 O) H% z% d$ B* E, S - Serial.printf("[HTTP] GET... failed, error: %s\n",1 V/ i2 K' N B& O, \
- http.errorToString(httpCode).c_str());
2 ^, m, S2 [( N h/ u - }
; H! ] x& p% i% g/ ~8 q& }8 x - http.end();; t" {1 W3 a4 ^( `+ \) X
- return "";/ ~6 A+ p2 E% G* r
- }
8 S7 ~% |" t7 b, p6 P - }
, g5 h) E# [: X, | - void mainAction() {
( V( b8 Z" X/ v+ ?- P - // 发送请求6 Y- ?& \/ d% G3 A
- doGet("http://google.cn");
) E2 i) F C x% y$ ] - }
$ D: w. S" \6 ^' V) v* c
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