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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)
7 G' N5 M* ?# v2 \- #include <ESP8266HTTPClient.h>
1 K- T. ?& k' b - #include <ESP8266WiFi.h>
. u! W( u! C. j/ |, T9 }4 H# N - #include <ESP8266WiFiMulti.h>
) I- p* Q+ X+ E - #include <ESP8266WebServer.h>3 u, k# z! S7 d' ~2 j# Q
- #include <arduino.h>
! z- u1 Y# O+ s. q: @6 d2 O - ESP8266WiFiMulti WiFiMulti;
3 t/ l8 k6 p2 ]" a. {2 q - ESP8266WebServer server(80);" T$ E& K' @5 U& d1 U, K$ j
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";; R1 [! Q! ]( W1 X7 ]
- ADC_MODE(ADC_VCC);7 j$ C7 ]3 v0 R+ ?
- void setup() {
5 M1 H6 q8 h9 v' U+ i( N4 b# I - Serial.begin(115200);5 Y! `2 Z! `( L/ A! l, L/ K; ]2 v
- Serial.print("\r\n\n");: U$ c0 C8 _% |$ w. Z2 I
- pinMode(2,OUTPUT);6 I3 J5 x- _4 o# b* O
- // WIFI
) E) }- C8 D4 |* Y3 f5 q - WiFi.mode(WIFI_STA);8 ~; c" P! D9 D e9 ~4 B& ~
- WiFi.hostname("Sparkle");
& f% l3 G% {+ ^( @ - WiFiMulti.addAP("wifi ssid", "wifi password");
( ]3 w2 B- p# A; q, G - int tryNum = 15;; y5 z' `% R& y+ \
- Serial.print("Connect WiFi");, C. E! W1 B" J0 |/ j7 W
- while (WiFiMulti.run() != WL_CONNECTED) {! R6 L {3 U% `6 o, z" `
- digitalWrite(2,0);7 e1 x& i- M. g- B2 a# ?
- delay(200);
9 K) ~* N6 h# \& B& R$ t1 G - digitalWrite(2,1);
+ h/ D6 G+ `5 Y0 l - delay(300);
S+ c8 h+ n, E4 K* @' e - Serial.print(".");
6 ^8 }4 A5 x( ^8 D D - tryNum--;1 w h6 f% \3 \1 E" v# \5 t
- if (tryNum == 0) {( j0 e0 M+ }# {
- // 1min
# L5 m' ?. G- T3 ? - // ESP.deepSleep(60e6);
$ w F0 }- W* T* @3 U4 n# | - ESP.deepSleep(0);( j8 R4 o! g$ M5 h$ D: ]! w5 R
- }
- ~5 _) H& g" \0 X - }; T9 N; C7 y* W# x9 S. a* Z0 Z
- Serial.print("\r\n");- c) a4 d. O3 r$ I! l
- digitalWrite(2,1);
4 U, v& G# f$ u7 w - Serial.print("IP address : ");' U) ]! N n! O1 D! G
- Serial.println(WiFi.localIP());( b" q& X- B' V6 v; C
- server.on("/", HTTP_GET, [](){9 q5 |, [$ D, D3 F$ z2 a$ `
- server.sendHeader("Connection", "close");
- q# q! Y; p, W8 I0 U) b4 [ - server.send(200, "text/html", serverIndex);
7 T# [. m+ A+ l0 u7 v: k1 t - });
( }; g1 Y4 q7 T) n2 w0 J* P" T - server.on("/update", HTTP_POST, [](){+ k) g: y! |. w! A2 e ]
- server.sendHeader("Connection", "close");$ }' z; r% u! V9 f' }. X
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");0 c1 x; E) \# h8 ` r p2 j
- ESP.restart();
, B, B2 D: w$ }" J) D) ` - },[](){! a( y8 J! d% j% X6 U, m4 z) B
- HTTPUpload& upload = server.upload();- i# i8 Q( k, H+ N6 y
- if(upload.status == UPLOAD_FILE_START){0 x) E2 [* |# m8 ^$ ^ d7 U
- Serial.setDebugOutput(true);
& G# ?+ J' N. y) n s- @- | - Serial.printf("Update: %s\n", upload.filename.c_str());; ]' _0 i7 s0 k& G' s( F
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
7 i3 A9 f$ X3 m, |6 Z6 X. q - if(!Update.begin(maxSketchSpace)){: T; s( h) I/ P8 _: N: Z
- Update.printError(Serial);
9 u, c1 H' t9 O+ g - }! z$ s( B* N/ s9 U; l6 n+ L) E
- } else if(upload.status == UPLOAD_FILE_WRITE){
: P+ {- M( r/ R. T3 x& R - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){. g1 u2 I2 {% n; z+ [9 E$ }
- Update.printError(Serial);8 d! R6 g" \9 ] K7 `2 k: U
- }* R, Y% h" C/ Z& |! r
- } else if(upload.status == UPLOAD_FILE_END){
/ i3 S! _ O8 S7 N5 K6 x8 T - if(Update.end(true)){9 Q/ _1 `% b3 z4 H9 M3 w1 Q
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);; V$ s4 M( {) g8 i
- } else {
* o- X( J& \4 X) T; e - Update.printError(Serial);, _% I$ M, o4 o5 b5 \3 F
- }. j6 z& U9 N$ P, Y* H+ G: ?5 U/ r8 O
- Serial.setDebugOutput(false);$ J% K/ W4 ^9 k) X
- }0 Y3 m2 O) n- Z
- yield();* Z6 s6 G8 l1 u6 |
- });' {4 g5 s9 {) e& s7 ^9 p& B
- ! r/ K6 Z6 l, R; D# {6 P& Y
- digitalWrite(2,0);$ f0 Z1 i: a4 l2 ~! k" D
- mainAction();- Q/ b0 G1 B1 I% V" p; t, d
- if (digitalRead(0)){
' G. `' m z* b - ESP.deepSleep(0);2 G1 Y" |7 j3 U2 Z4 `3 y, |
- } else {; @# v- V; f# n- S
- server.begin();" s3 ~/ z! K" n' q- U& w5 F
- }
W7 j( `8 n9 H! q$ c! X - }
! [8 ~ j, |& \4 W - void loop() {
$ {! {! C3 Q6 x+ v7 @+ ] - server.handleClient();
) ?' J- V5 f/ z* u - delay(1);$ Z( ~7 M$ W, n6 l S
- }
3 j" d4 T6 D" i1 p# F! t* y4 Y3 S - String doGet(String url){5 y0 _) K6 d9 J Y7 z( _7 W" H
- if ((WiFiMulti.run() == WL_CONNECTED)) {
" R' V- o2 t6 O- U - HTTPClient http;
5 P5 t2 N" |. C# @* F8 T9 k4 N - Serial.println("[HTTP] begin...");
4 _5 M9 A4 ^- N$ f6 o - if (url.startsWith("https")) {
3 Q8 O5 w( z7 J; I9 Y - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");% X! a; Z# H! N1 C- ^0 x6 L4 j
- } else {
9 `: w+ {8 L" l! H - http.begin(url);
/ l$ t; F* |. y0 Q - }
$ z; F3 g1 q" {7 y% C5 T - Serial.println("[HTTP] GET...");( j" z% B3 a: H3 A$ b) w
- int httpCode = http.GET();
4 v& T3 r! f+ L5 O% b, ~, | - if (httpCode > 0) {
$ Q7 {' Y+ n! N6 q8 b3 Y9 S! S - Serial.printf("[HTTP] code: %d\n", httpCode);+ p5 q R( D% O" a6 |4 n0 F. s
- if (httpCode == HTTP_CODE_OK) {1 D0 _7 ?. r$ d* B! ]6 @
- String payload = http.getString();
* s7 o5 B% v. X4 o% U# j* U' m4 m - Serial.println(payload);2 i4 v% r. ^* S. k
- Serial.print("\r\n");% ?8 C! G- @1 N) I- r$ V
- return payload;, V: B$ y& i- j w8 s# l% M
- }
% G* V& w1 j! g2 C) O - } else {
6 \4 j; k8 F% a - Serial.printf("[HTTP] GET... failed, error: %s\n",
; x P+ h! X+ R7 T' R - http.errorToString(httpCode).c_str());
9 \9 f- U: ?' d" d! x* u; y o& s - }% u* t- H1 K0 X* r; `: x
- http.end();; ]* E( W, y! d* w- {
- return "";
$ f" t- |% o* b0 i; ?) O" I6 t - }, E5 D" o m' _
- }
7 Q3 ^, x) @& t" b: m1 Y - void mainAction() {0 J3 u) s/ W7 b2 {
- // 发送请求& L1 N. F& T& Q8 E
- doGet("http://google.cn");
6 D/ k* V7 I" O8 O - }
$ q& q4 B* L- C% o/ Z
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