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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)
2 s! a0 B m# }: x- #include <ESP8266HTTPClient.h>5 x/ e& E7 R w
- #include <ESP8266WiFi.h>
4 \ f, L4 o, G: g - #include <ESP8266WiFiMulti.h>/ }4 u/ J! E2 f
- #include <ESP8266WebServer.h>) x" m l* N- G8 I6 f: A
- #include <arduino.h>
! {- Q% I! n7 x; }. r - ESP8266WiFiMulti WiFiMulti;! ^/ K5 u% O' T+ Q3 ]! s r
- ESP8266WebServer server(80);
3 B5 m/ W( Q- A8 l - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";; w' s& d* H3 [: ?9 }$ }/ \
- ADC_MODE(ADC_VCC);
& M" E9 g6 \5 K; V, G, C+ K - void setup() {9 b/ l. I; O5 S7 y$ Q7 m1 d8 W
- Serial.begin(115200);
8 T* _ ?4 _$ }/ k) X" u2 [: b! [ - Serial.print("\r\n\n");: R5 |1 O% U- J i" g# l1 T I
- pinMode(2,OUTPUT);
- t1 e& K+ Q& M$ g- q% L* G9 { - // WIFI; A1 I# D; j5 u8 `) T
- WiFi.mode(WIFI_STA);3 W, w, r' v* D1 U, c
- WiFi.hostname("Sparkle");( Q- N; C/ i8 u2 d$ Y% J/ x
- WiFiMulti.addAP("wifi ssid", "wifi password");
$ F4 ~, S0 H4 q- G - int tryNum = 15;
; H! r8 C! \9 x6 Y, l - Serial.print("Connect WiFi");
9 z- W0 _1 v8 R - while (WiFiMulti.run() != WL_CONNECTED) {
) u5 l6 W- M' @4 ` - digitalWrite(2,0);
4 _. a3 h! r5 y* m5 ] - delay(200);
3 n/ }) ?( S5 E' r* `, J" ` - digitalWrite(2,1);9 ?2 r) d0 k3 a7 ~" r- g! @
- delay(300);7 y3 `4 L- F- w. V2 o; j
- Serial.print(".");
$ e$ {+ c1 E4 P1 `( l - tryNum--;
6 T0 b: z/ N, ~3 e8 ] - if (tryNum == 0) {
2 m+ B2 L; S& S+ Z8 u* ^% w* T# l5 @2 h - // 1min
" O3 h1 {' P' J2 a. M F. w& G - // ESP.deepSleep(60e6);2 \# \* j1 d0 W# L3 J
- ESP.deepSleep(0);
, m2 s! |5 n5 F) V U1 Y1 D - }
/ e/ s# p1 j1 |+ q. u: D" n - }
$ T' ^" Q( x7 ~ - Serial.print("\r\n");
E9 v2 p% D+ e8 ?/ c9 I& k - digitalWrite(2,1);
* e0 Z" Q5 G9 D - Serial.print("IP address : ");: f: `! L; e$ T& |% ?2 w$ F
- Serial.println(WiFi.localIP());" J+ M7 p5 e' _
- server.on("/", HTTP_GET, [](){
* N, E8 A# [) K' @( G: k' U4 K - server.sendHeader("Connection", "close");
u0 ^- n) X* o) t - server.send(200, "text/html", serverIndex);
/ F# R& t7 l- k) f t* j; e$ {* } - });
7 T( r8 u' q1 A% g2 [+ j4 B - server.on("/update", HTTP_POST, [](){6 i/ {% Q$ W8 P$ o* B2 t
- server.sendHeader("Connection", "close");
0 t4 a9 l( Q+ F( R( K) }% ~& z - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
9 I# d. f3 N% U5 ~ - ESP.restart();
9 d7 Z5 D) x* y - },[](){
7 M. F2 L$ L0 K. j# N - HTTPUpload& upload = server.upload(); |9 _* E' F3 l7 Q/ d# ]3 y2 J; ^
- if(upload.status == UPLOAD_FILE_START){% W* {7 K u7 q
- Serial.setDebugOutput(true);+ v& g% x8 J' {6 N/ |- J# I0 w
- Serial.printf("Update: %s\n", upload.filename.c_str());
: r5 x/ ^: j8 f5 z; v/ ~) W" ~ - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;9 V7 G% e! K. [* ]9 g( I: D, z
- if(!Update.begin(maxSketchSpace)){. C- u1 ~2 B% d' ^( b+ H
- Update.printError(Serial);0 x/ \0 B/ q" ?! R0 d
- }
2 [2 l* t2 d5 d - } else if(upload.status == UPLOAD_FILE_WRITE){" U i7 h: S" E
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
9 M& x3 t& v% X, h/ N/ L' p% I - Update.printError(Serial);1 b8 V" q7 r+ u' {# I" ]1 z
- }
@) p; ]% Y x' }& y; W3 o: w: M - } else if(upload.status == UPLOAD_FILE_END){
$ W6 g: q8 J& C- e; q6 U- }4 b - if(Update.end(true)){
! R7 n$ X+ N$ M0 o4 u4 Y - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
7 s) `" ]" m9 T; U7 P - } else {6 t( V+ K, W0 l( m) R) @* F" x8 H7 J/ E
- Update.printError(Serial);& ?' W* y @) y8 {% y, V0 C0 J
- }9 q1 `$ x% n$ B) P$ G# k
- Serial.setDebugOutput(false);8 ^) R. Q7 {- _; F
- }
( a0 j5 S" x/ H6 g% G - yield();3 W8 R9 Y# R4 O2 G" g9 f' R
- });
' s. X6 e! P# y5 Y5 \ -
4 A" ^! e7 F3 G0 s4 I - digitalWrite(2,0);# V K! u1 p" j
- mainAction();
, H3 ?4 \8 L5 Y0 w - if (digitalRead(0)){
: M9 x% `" M* [& s9 L2 M% @# r - ESP.deepSleep(0);" _! Q: J6 u1 ~2 f7 C
- } else {
( K. o5 Y' l% X4 _1 }1 J - server.begin();- m& t; j, Z/ i8 w$ H7 p
- }$ a3 B/ ?" G7 S1 `9 V/ s$ J$ r) \
- }
' T% |0 e' b$ K. l - void loop() {
* C p7 O* n# T$ q& @ - server.handleClient();* P( B. \- k& ]# O- \
- delay(1);9 [" q) |0 r! L# V' ?6 G
- }3 z' O: R, A9 u( C
- String doGet(String url){
& e9 Z3 C$ y" u4 U - if ((WiFiMulti.run() == WL_CONNECTED)) {! {& s/ m% v9 N* n" C7 Y/ J' r
- HTTPClient http;& [2 ]/ J1 z5 _
- Serial.println("[HTTP] begin...");
& }/ I* m u: Z: W - if (url.startsWith("https")) {9 K, O* A& W! }$ p5 R- P
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
F2 Y' z- _4 U5 P7 k) }. _2 O - } else {
2 l5 }1 l% _; ] - http.begin(url);
; i$ \* S9 d) Y) R* x9 q$ I& e - }/ K# l% I/ Q* L; M/ Z/ V- e% X' m8 w
- Serial.println("[HTTP] GET...");4 {7 ]) G* I( O# ?! \: Z- ?3 ?
- int httpCode = http.GET();9 F" L, a# \) [
- if (httpCode > 0) {
: z) p* ?$ S7 A/ i9 [- e p, _ - Serial.printf("[HTTP] code: %d\n", httpCode);% f% p. }9 [7 M6 B
- if (httpCode == HTTP_CODE_OK) {
' n8 }0 ^% t: b7 k o - String payload = http.getString();; I5 u% A2 m( E' p
- Serial.println(payload);, j" k& Q! [$ e) K- h+ `
- Serial.print("\r\n");( z$ _- L, A7 o g
- return payload;) U) q5 D) R/ Q( p) D: o
- }5 Z; b, L9 u( i! G) Q+ H
- } else {4 I/ ]. p4 A( d
- Serial.printf("[HTTP] GET... failed, error: %s\n",5 f1 z# ^) v8 P% @& A% |$ G
- http.errorToString(httpCode).c_str());3 l/ U# H2 Q$ Q' \1 c# @0 u3 z( j
- }
6 F/ s8 C& p! O; q7 j6 i' R( t# A - http.end();
/ @0 J! Y8 b: \% N- F - return "";5 ~) I5 v: R# t
- }
" l, }) w/ V& m7 W1 [5 R) H9 [ - }
; B5 u) ~4 @+ G1 l+ v - void mainAction() {2 X: R2 C; |# ^; R& m
- // 发送请求
, m) s' W( f) T5 ~6 R - doGet("http://google.cn");
$ m* m/ B2 z C9 Y) S2 t - }
. G' W, M4 u" n* a; ^) `( F+ L2 F
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