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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)
6 U: X% C2 U* V; z% u5 l6 d- #include <ESP8266HTTPClient.h>! V& B2 ^; I8 E) G: I) R* m! c
- #include <ESP8266WiFi.h>1 j+ H3 t" @, ] F* t* X
- #include <ESP8266WiFiMulti.h>
0 w* k0 {" n$ I! M - #include <ESP8266WebServer.h>* k8 K. \/ q. ^, Y9 G) U0 U9 d% {( T% Y( R
- #include <arduino.h>+ P( q; i6 R' A0 c8 X% ]7 X
- ESP8266WiFiMulti WiFiMulti;
B( ?' D0 k: d1 R+ Y9 L4 ` - ESP8266WebServer server(80);
$ F' {: R/ i: p0 D. `2 p& E0 P0 E - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
. x6 K6 f2 G' n I7 C - ADC_MODE(ADC_VCC);2 m4 ~3 B1 u1 v! M; \& g& V% h2 v
- void setup() {: O% X0 n4 F7 l1 f1 E
- Serial.begin(115200);( }5 @* G- W- z
- Serial.print("\r\n\n");5 A/ y) {# n8 O5 G' }
- pinMode(2,OUTPUT);& \0 }1 q) F9 ^& @1 Y% t
- // WIFI1 q6 J7 w& f/ S
- WiFi.mode(WIFI_STA);# M. q% \7 @! T8 s, Y% n+ C
- WiFi.hostname("Sparkle");5 O$ R- ^' k. u. R
- WiFiMulti.addAP("wifi ssid", "wifi password");. b; r1 Z0 [7 P$ k" Q
- int tryNum = 15;1 h' l0 h/ G( O# P. I/ J
- Serial.print("Connect WiFi");/ K4 j) u8 Q8 m+ j9 M' Z/ R, d6 g
- while (WiFiMulti.run() != WL_CONNECTED) {9 W2 m5 K. b! O1 n
- digitalWrite(2,0);& @; `2 ?' w9 {% w, D
- delay(200);$ x% ~4 g( t8 D) R( z; X4 K# C
- digitalWrite(2,1);. b8 c& g9 I' N& W5 B0 @
- delay(300);+ r4 u& J) E) N
- Serial.print(".");
, }$ v2 \3 \& w# m+ g - tryNum--;6 c/ ~! h! ?) u4 N% C/ @
- if (tryNum == 0) {
3 k% H; n! Y1 j: { - // 1min1 b9 j5 b" I) @
- // ESP.deepSleep(60e6);
' g: V/ c# v: D: `7 [5 J - ESP.deepSleep(0);- A8 D' U% _4 ]
- }
% u2 I; m* V# v& B" C - }
; _+ ]1 q2 b9 r* i4 K0 m3 G1 @. O$ Z - Serial.print("\r\n");' h* h! q* t& F5 v. I9 ]. o
- digitalWrite(2,1);
0 O L" M8 Z) j1 r - Serial.print("IP address : ");
+ m/ b4 S( v t W) o4 H - Serial.println(WiFi.localIP());
5 e7 u/ s9 p& ^3 b- w: C - server.on("/", HTTP_GET, [](){
2 B0 {8 S( w$ E& O; k) P7 w - server.sendHeader("Connection", "close");
{6 P# D9 I- C% q6 s& n. ~# ~ - server.send(200, "text/html", serverIndex);
) l0 `. V; `9 t1 R& m( f. g - });
7 v: H2 o- X6 N: e5 ]: ^2 m0 O& J - server.on("/update", HTTP_POST, [](){
$ ]$ X3 z, e4 T! B) E% O4 W - server.sendHeader("Connection", "close");. ]4 s. t% w1 K* K9 _9 ?; [
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
+ G# t; t' d# u$ R - ESP.restart();
. J5 {: r Q! R8 p$ V! w8 K( s - },[](){
1 S- n( B8 P3 ]4 s: O& b - HTTPUpload& upload = server.upload();4 N0 t# k, Y8 E" w, |/ j
- if(upload.status == UPLOAD_FILE_START){
0 b1 e# _; v3 q% [ - Serial.setDebugOutput(true);
1 v# }4 h( T1 S2 H - Serial.printf("Update: %s\n", upload.filename.c_str());/ j/ t; Y5 q$ B8 ~0 y
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
1 Q; s/ w( b! m - if(!Update.begin(maxSketchSpace)){ q. g! S8 N `( k/ Z# {
- Update.printError(Serial);
# a9 D+ I1 v& e# q# \: A5 z - }3 M2 ]( [9 s+ U
- } else if(upload.status == UPLOAD_FILE_WRITE){
$ }+ b3 J t+ i5 V3 N - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){+ ?5 D6 b' I: u
- Update.printError(Serial);* a7 a) B( b& j& P
- }
2 H7 B" J/ ?! e; G0 |5 d/ D - } else if(upload.status == UPLOAD_FILE_END){
7 j9 Z- s4 h* H& I- E) \& [ - if(Update.end(true)){; y7 h g0 w. F! ~. a
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);4 Q7 `+ \! e, u. U8 R: X& k4 N
- } else {
; q) @+ [. j* r6 Y4 |4 K - Update.printError(Serial);3 B" R" i. X5 _- i- o& |
- }0 D% l, M; g7 S d, S
- Serial.setDebugOutput(false);
# w k" h" I1 f8 G& H1 U- Z2 d - }
& S: y/ L- r/ B" P8 s5 p& k - yield();6 C6 t4 {: u: L* L) L0 \
- });7 `: r4 _5 E! }; \
- + r5 K# P& r' ?6 J/ a% [
- digitalWrite(2,0);! H6 ^6 n+ m- P6 ]" s a- k
- mainAction();
" h' D0 I% w( }" ^" N2 n - if (digitalRead(0)){+ w/ w+ d) W9 w: k4 N1 d3 C
- ESP.deepSleep(0);
) l9 Q% i: \! d. q- c9 x9 p - } else {
' R- Y& j6 @$ a% M* e1 I4 @( b( `' z - server.begin();
6 j' E- j& y5 p. I- Y" T - }
6 i" `" [- E I0 Y - }
( F' l" C3 F7 H) v: A - void loop() {* T/ c4 ~/ S: F2 m0 j) Y! J# P
- server.handleClient();2 X. \, k/ S( j' W
- delay(1);' @$ C9 {2 y# [2 @# E
- }6 h/ Q" Q8 X4 Q0 w* W2 S* ]
- String doGet(String url){
+ C8 ?7 o2 T7 M. R2 i" |2 z6 _ - if ((WiFiMulti.run() == WL_CONNECTED)) {$ G; {3 G$ O6 `1 g V$ y5 a5 r
- HTTPClient http;
& G9 O" p* X8 b: e U1 l5 c - Serial.println("[HTTP] begin...");
3 u" w; b! t) P5 ~ - if (url.startsWith("https")) {( X# F9 z1 d! j6 n; \, g% Z
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
; [7 y$ W2 q3 X" ~- L* [ - } else {
3 `& z+ u8 ^/ i# d( u" P. |; ^ - http.begin(url);
8 W8 m$ B+ t) u1 d+ k3 U4 Q H - }& Z: r* A3 y/ v
- Serial.println("[HTTP] GET...");4 _7 N) Y8 W7 B0 I. E
- int httpCode = http.GET();2 [$ X/ D& r& j. r6 [6 x' v
- if (httpCode > 0) {
& G6 @1 v6 i: d/ _4 z. A9 Z - Serial.printf("[HTTP] code: %d\n", httpCode);
7 s% q& a2 K/ s3 |3 k - if (httpCode == HTTP_CODE_OK) {
. C0 d& e; |2 T+ ]' G1 d. ^ - String payload = http.getString();& G4 ?' N9 t8 s* j
- Serial.println(payload);$ z0 R. e9 V `6 |# i
- Serial.print("\r\n");: I' o6 _/ ?& O% M0 h
- return payload;+ I7 G) V$ @6 e1 n3 x( Y& a
- }
( [7 {' ~" @% r8 h - } else {; q/ R8 m* d) r; `& e0 s4 X8 d
- Serial.printf("[HTTP] GET... failed, error: %s\n",# E, }( i+ _+ K6 T/ M* s8 J# C) o
- http.errorToString(httpCode).c_str());8 ^* \! T' q/ z" y; Y X" G
- }
4 A# I7 e% k7 S1 S - http.end();7 [# v+ k2 D0 o
- return "";
9 D1 ]) f( w- Y' }! j- G - }8 n6 H0 W/ |# J8 P4 [: D" ^3 e
- }. b$ Y) `7 y$ j7 ^$ l: t
- void mainAction() {5 B9 r1 B- d6 E" |, {- N0 P8 m* K
- // 发送请求6 g. i8 H7 ^; m% @# x6 {( |9 S# m
- doGet("http://google.cn");' p- s8 L: n4 b. d
- }
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