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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)" {3 k! I V2 {7 }
- #include <ESP8266HTTPClient.h>2 S* w8 r& i% ~% I# K0 E, v
- #include <ESP8266WiFi.h>0 Y- g5 a3 G% R; s: O8 n
- #include <ESP8266WiFiMulti.h>) y/ Q- T( h% z/ r
- #include <ESP8266WebServer.h>& I8 N9 U- r6 h* u6 z
- #include <arduino.h>1 \; g. ^- Y- K9 r
- ESP8266WiFiMulti WiFiMulti;
: ]7 W0 J: @& v' l( u3 b - ESP8266WebServer server(80);
" U' y- x$ n' s - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
5 k3 O, D+ P% _* ^ - ADC_MODE(ADC_VCC);. q% d0 F& l+ V Q
- void setup() {
& r, w% p5 F: g5 g [ - Serial.begin(115200);, M# `+ U$ X: ]9 Q; z
- Serial.print("\r\n\n");
! R7 [( P5 v! c - pinMode(2,OUTPUT);
# R8 F& m$ j2 y: s4 Z - // WIFI
: T C5 T4 X0 O - WiFi.mode(WIFI_STA);
- G& q- _3 ^. L - WiFi.hostname("Sparkle");
7 {" f! F# Q1 f, U3 C - WiFiMulti.addAP("wifi ssid", "wifi password");
' w+ D$ Z/ l% z$ ` - int tryNum = 15;
1 d# o) C3 N" X8 K - Serial.print("Connect WiFi");
2 `7 F; s$ b. A+ e - while (WiFiMulti.run() != WL_CONNECTED) {/ u. l6 V3 X1 w* `& ?
- digitalWrite(2,0);
V! b4 }8 y* F( |: a0 D. X - delay(200);
$ Q. c, a0 Y8 A1 L& } - digitalWrite(2,1);
( T' y0 ^7 K: c" L - delay(300);
2 b! N6 j" M; d2 a. \! n - Serial.print(".");
# M1 ?+ q& B8 D5 \ - tryNum--;
( |# c* q" \7 e" O( y/ ?& e& L2 N - if (tryNum == 0) {
; ^' j% r8 K% x# G% D2 g - // 1min- U! z( X0 Z& ^, x9 f
- // ESP.deepSleep(60e6);
- S% i/ [ h) G4 A1 [ - ESP.deepSleep(0);
8 J j4 {9 O, u! \5 V+ O) w - }, C& u3 E9 z* a/ d+ U) S
- }( `9 D4 e- V7 \9 m9 |$ ?
- Serial.print("\r\n");9 M4 z8 _$ N+ ^2 I- r
- digitalWrite(2,1);
8 b p6 ]; {9 J" P# Y - Serial.print("IP address : ");
( R$ S9 Q" }) X% M5 b - Serial.println(WiFi.localIP());
3 X" L. A1 \9 ? - server.on("/", HTTP_GET, [](){
) V0 c0 K7 X2 ]+ m - server.sendHeader("Connection", "close");, v- J2 ]. l) T) E0 u& x/ n5 f
- server.send(200, "text/html", serverIndex);/ b. Y: d; }, }! e- N4 h" e* K
- });! r# |% ~8 `* [3 v0 K% C" K
- server.on("/update", HTTP_POST, [](){* m* h/ w' L `9 ^5 x
- server.sendHeader("Connection", "close");: T2 {/ R" }$ T, }5 @
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
K" j- N9 [+ Q - ESP.restart();4 V% x: q. A# d
- },[](){& b2 Y* e( [+ [
- HTTPUpload& upload = server.upload();
! s/ M8 K0 q. E; s5 c( P7 [ - if(upload.status == UPLOAD_FILE_START){; b Z; E8 J* ]- _
- Serial.setDebugOutput(true);
" z; w& [; A \6 b0 d - Serial.printf("Update: %s\n", upload.filename.c_str());
. {1 }% w, q! M# @ - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
, Y E; w! G9 {7 B! M - if(!Update.begin(maxSketchSpace)){
/ W- X3 m4 l2 }6 f - Update.printError(Serial);$ n& l: O* ?% @7 h0 u
- }
- f0 B7 u9 @8 `- l - } else if(upload.status == UPLOAD_FILE_WRITE){0 w5 N5 j8 D" T
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
& T8 g/ ]" J/ I3 g+ z7 [ - Update.printError(Serial);
( j3 P5 g2 d2 m0 B; F- d - }/ v) q/ |% D2 o8 s4 V+ {; F$ q2 u
- } else if(upload.status == UPLOAD_FILE_END){4 Z0 R# D: Z# x- y
- if(Update.end(true)){
/ T) V; ]% b2 u% e. {( Z7 W0 ~ - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
9 C) T+ A: R& ] - } else {- g q& W4 V( @5 w9 k3 q) T3 a; T$ Z
- Update.printError(Serial);8 S$ v! P0 Q1 v
- }8 y& w! K e6 P. J$ U
- Serial.setDebugOutput(false);7 u! d% j& g* R( _1 t) g; f+ @# a3 w
- }* Y5 g' Q6 `1 y& }; e
- yield();
3 F+ L( r6 \. o2 h7 H - });, U9 @. c1 F# M# q& \3 n
-
1 i! f6 g7 {& Z! z7 U - digitalWrite(2,0);6 m# {5 ^& _1 p
- mainAction();
" h% l! T- F' E - if (digitalRead(0)){
3 S* x' h" K/ K5 ?" K" J! H - ESP.deepSleep(0);
( T. z( y/ F# b# L8 _& S - } else {$ z( H8 o9 @+ [8 Z; m
- server.begin();/ J1 i6 r& m: I9 g- ^. y C
- }8 Z1 i- J7 A( J9 h& F
- }
! d) H3 p( _0 m) @) {. I2 i0 w1 ^5 V! C - void loop() {
6 G. r( k* R9 f- O( N( w - server.handleClient();
7 q2 n: O0 Z# L, J1 P% J6 S9 ]& ? - delay(1);
X, o' w" F& b/ h- |1 O - }3 a* s+ J+ m0 |3 y% \! ]0 p
- String doGet(String url){
4 s$ G. I8 `. d" W. y, k8 L3 u - if ((WiFiMulti.run() == WL_CONNECTED)) {4 j4 ~ l/ j. f( y
- HTTPClient http;
7 N" x1 B/ [2 h' G - Serial.println("[HTTP] begin...");
5 B% }! E" e. y, G - if (url.startsWith("https")) {' D1 y' Q8 ^" R# N2 {+ y3 J$ a T
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");% w/ O( c3 d$ z& U6 y$ A0 T
- } else {
9 B3 K+ K1 [* N" H - http.begin(url);
3 @4 u- j9 _+ u( L0 U- S - }6 p# X( g* R9 n" Z
- Serial.println("[HTTP] GET...");
7 |9 d7 J( l* @5 {; j2 k' J( U - int httpCode = http.GET(); r f- n, s$ D! P s( b
- if (httpCode > 0) {
$ Y: H: S* E; J& t% `$ H' R - Serial.printf("[HTTP] code: %d\n", httpCode);; g9 _( z# @% ]& \0 M0 a
- if (httpCode == HTTP_CODE_OK) {' L/ [" Y' b$ s6 s1 _4 f
- String payload = http.getString();
8 a4 ?$ F8 `# H# X: I - Serial.println(payload);
# r4 v/ b/ r+ z8 F% k; @0 Z - Serial.print("\r\n");
. W1 Q/ M9 v& o6 ]& P I6 w @ - return payload;
5 a, ]2 L& [: @: G4 J3 Y6 g& x - }
% Q4 \4 @7 t7 `- { - } else {
, }) \# {& N+ r# V6 ^7 B$ F - Serial.printf("[HTTP] GET... failed, error: %s\n",
& n+ Q3 F6 y, N% [2 F - http.errorToString(httpCode).c_str());
) h/ }4 d, U) K/ `- Y - }/ p! ~7 u) d7 S: B% } h
- http.end();
+ H) D1 U3 h5 C, F6 ]& k! p - return "";9 I# _4 o' Z" ^/ O% u% U y# b' N
- }' i' C) B8 u) p* \; }" E
- }3 [! f. g# v% t6 K7 K( B8 r
- void mainAction() {
) T% b* T0 E6 n - // 发送请求8 n r! I& }4 O, X
- doGet("http://google.cn");7 ]$ V% n4 `# P3 d! O8 d) l& X
- }
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