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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 M/ \2 ~8 R
- #include <ESP8266HTTPClient.h>
M) S# M; b7 V! d8 \ - #include <ESP8266WiFi.h>
3 r1 c/ e7 d! g( V- z+ W3 N - #include <ESP8266WiFiMulti.h>
* {4 ]0 X0 o8 F( ]9 R - #include <ESP8266WebServer.h># n3 C+ w4 K$ S% E; c$ D' h
- #include <arduino.h>
/ N% B9 b" |; N, k2 l3 _' _' Z - ESP8266WiFiMulti WiFiMulti;9 q! |: j; B1 F/ E( Q
- ESP8266WebServer server(80);
" T8 H: z+ h9 t6 p3 _ - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
. ?( t$ Q: V- K( F" ] M - ADC_MODE(ADC_VCC);
6 V; i- p9 B# X) s" V7 V" W( l2 J# X - void setup() { N* S7 A8 `. a1 U% _7 T
- Serial.begin(115200);
9 w$ V) Z- I7 O4 _- h6 ^# \/ l - Serial.print("\r\n\n");
9 M* g, ^( M9 ] i( d - pinMode(2,OUTPUT);, B" @/ @3 i4 Y& E/ _) [. i
- // WIFI: N/ Y! ~' W. d7 m& b
- WiFi.mode(WIFI_STA);! B% R# `4 X( `- b6 ~
- WiFi.hostname("Sparkle");0 J9 B% `+ @# K0 O5 p( i
- WiFiMulti.addAP("wifi ssid", "wifi password");
- [4 S7 g6 f1 X) Q - int tryNum = 15;% @8 v0 [2 [! v8 ~/ q6 ?
- Serial.print("Connect WiFi");
) \1 t, Z: e: F) q - while (WiFiMulti.run() != WL_CONNECTED) {
+ p+ E, e* O1 w - digitalWrite(2,0);8 _7 d" b% [) L, Q* A. r! I, s
- delay(200);
1 S! |, }* ~# [ - digitalWrite(2,1);! d( p' s2 d6 v' m9 ~4 h8 j& ?; ^
- delay(300);
# Q+ D# Y9 c/ ]! N9 }* [ - Serial.print(".");
/ n+ h7 p: D. c' K - tryNum--;
' [# B2 i0 i) i8 _' R - if (tryNum == 0) {
9 p7 c. k& z% E6 m9 o - // 1min
+ o& q* k1 A$ J5 c - // ESP.deepSleep(60e6);
~% Q5 o+ ]# G! v7 N5 g8 X1 a - ESP.deepSleep(0);
4 i& A7 i8 b( k - }
! d5 I% E+ H6 L1 D! A4 | - }
' E7 L9 [( B2 q) Z- B: T( m - Serial.print("\r\n");0 A* O% X' o; ]; P o2 H
- digitalWrite(2,1);6 Z& z2 m6 v1 b) G, g, B
- Serial.print("IP address : ");
( f9 T. B- v8 u" }( x; M x6 o$ |) { - Serial.println(WiFi.localIP());' a: G9 I% ?/ j+ b7 f+ z
- server.on("/", HTTP_GET, [](){4 D) A2 v' p, g; p: R; I
- server.sendHeader("Connection", "close");
6 ]" @5 j& J2 h. s - server.send(200, "text/html", serverIndex);- ]* v+ s0 R3 a v& F
- });
! [* k) i2 P! o( |% _ - server.on("/update", HTTP_POST, [](){
% N9 a5 S) i2 Y% x - server.sendHeader("Connection", "close");
8 z9 p+ H7 t* e {& p& e - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
# P& o. O$ C8 n* k* k - ESP.restart();
# Y) [; L3 e& H4 E - },[](){/ ?6 G% o& B V
- HTTPUpload& upload = server.upload();
. K5 A( A+ v# z! m - if(upload.status == UPLOAD_FILE_START){" F, h# w; c% C: O3 q3 K+ I
- Serial.setDebugOutput(true);' g D3 Z9 [1 E F
- Serial.printf("Update: %s\n", upload.filename.c_str());1 {" p6 p$ W8 s% \* R+ T
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;( D2 s+ s& U s( ?$ W
- if(!Update.begin(maxSketchSpace)){
5 S5 \1 B' |( E, B' b1 u - Update.printError(Serial);# V& z; L$ W) \# W$ w
- }# C* O9 l, o4 {0 @9 @
- } else if(upload.status == UPLOAD_FILE_WRITE){9 E: y! E5 a M. s2 Y: c1 u
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){- C& C" o/ c/ L- ^ N' e. O
- Update.printError(Serial);
8 s' z/ A: O( l0 g3 Y - }) z2 V8 [; `0 W; T5 X
- } else if(upload.status == UPLOAD_FILE_END){
! W5 a- N" s" X7 P9 r0 ` W - if(Update.end(true)){7 t V* H' b& ^# p6 `, j2 j0 }
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
# N& o9 H- c: A8 p - } else {! O3 k5 ]& i0 ]6 k5 p
- Update.printError(Serial);
. C( h8 v9 ^3 y! [# R# u - }& d6 a, Q% V4 M9 I' s" G' G
- Serial.setDebugOutput(false);% c+ \$ i. n, q, T9 q- r4 {
- }
9 l! e/ P1 E- u" [* a; Z, V - yield();
6 `% _3 D5 k6 [2 r - });
$ Y" p% Y2 W8 ^( I4 d -
, u# H: a& [' G/ ^% C7 y+ K* v - digitalWrite(2,0);
3 n( }7 P+ O, K - mainAction();
% m d) r h; Y* h, x2 { - if (digitalRead(0)){
8 J$ g4 `+ V/ n9 J5 P/ U - ESP.deepSleep(0);/ J) _! j" J1 Q8 o; N! _( l
- } else {
+ q8 K2 ^! b9 I2 l1 | - server.begin();
3 l( o7 K/ L* R" K) x9 N# ~ - }
7 n2 A+ } u- e. w - }; U6 c h. r( x* v1 J
- void loop() {
- _7 S2 z3 e& _+ z6 s$ z. @ - server.handleClient();% l: s3 x+ J' }' b
- delay(1);4 b- q' r% _- w2 Q" Y: V: w3 j
- }
) D/ {, m, J8 y: z0 B0 |8 B - String doGet(String url){
& ?! r9 i, c' i+ @2 C - if ((WiFiMulti.run() == WL_CONNECTED)) {
* `' M8 L/ k; r: c/ r - HTTPClient http;% L5 {( [" U/ F$ d7 v d, z/ g; a
- Serial.println("[HTTP] begin...");
' i9 Y/ k- |; m( y! K - if (url.startsWith("https")) {
0 ?) O% ?. c% [* k* [1 G v& D - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");, x# |7 Q# I# R k3 b0 j3 I
- } else {
) V) S8 ^$ S# ]7 n2 E: n, X - http.begin(url);
( [! Z$ Y3 C* j$ y y - }+ J% U) O1 M- {- F9 _
- Serial.println("[HTTP] GET...");
& C& M/ z8 t" @! x$ M - int httpCode = http.GET();
! H2 {- m0 k9 E* v - if (httpCode > 0) {+ U. g( V, N# _- [
- Serial.printf("[HTTP] code: %d\n", httpCode);
/ @, L) `6 P2 H2 H4 G% M" U W- \# ? - if (httpCode == HTTP_CODE_OK) {2 c4 P$ a- j7 u& G: D7 I
- String payload = http.getString();! B) a/ }. n) U+ B" I( ^% b
- Serial.println(payload);& `9 I9 y2 ~- q K9 }/ j7 Q, e1 q
- Serial.print("\r\n");
, T/ h) q* S2 P - return payload;
- i+ e0 m6 ~, s ]2 i' m - }# V s8 A* y7 R- w3 B1 `
- } else {7 G& `2 i r2 L' A' x
- Serial.printf("[HTTP] GET... failed, error: %s\n",
' Z, z- C b8 }( x6 M# Z0 j - http.errorToString(httpCode).c_str());
! \1 o. Y1 x$ c' i# U7 s - }' M) ]6 u* @; J' t5 e
- http.end();, H% P0 |( c' J1 c$ r- i6 s
- return "";
9 [6 O- X! @% g" G2 E$ C. n - }" e U" e. B; |% j4 x
- }% a" s( O% v0 v& [7 T
- void mainAction() {: R# m1 z) Z5 Y, q
- // 发送请求
+ m( v% B$ v3 E* B' G; t0 ? - doGet("http://google.cn");) Z" ^. G" l' z9 D# S' s7 L
- }4 k1 x6 U/ h3 h8 V( n! p" r
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