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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)8 @' k% U* Y$ w) J1 c; `
- #include <ESP8266HTTPClient.h>
: M: W: V, f1 v1 t5 D4 z - #include <ESP8266WiFi.h>1 Y! Q' ]! S7 s/ Y
- #include <ESP8266WiFiMulti.h>! w# O* S) l8 Y" {6 \! N- M/ O
- #include <ESP8266WebServer.h>& @7 c: d7 R8 L- ~8 u
- #include <arduino.h>
; M/ T R5 e/ | - ESP8266WiFiMulti WiFiMulti;2 ~( k4 i) t! ?$ l# ^
- ESP8266WebServer server(80);
! y8 |( l8 p6 O - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
8 B, E) I0 _4 [: B3 s C - ADC_MODE(ADC_VCC);
& p0 f1 {6 p' G0 j9 ` - void setup() {
7 g' G" L& ~* z* F) D - Serial.begin(115200);
9 x8 a2 @1 E- t' _ y, }+ b: K - Serial.print("\r\n\n");/ Y8 Y6 }" P$ E
- pinMode(2,OUTPUT);" w' y# X* B/ s: D- O9 f
- // WIFI- ?9 A/ y9 O8 y1 z
- WiFi.mode(WIFI_STA);
! C" M3 Y5 h% T - WiFi.hostname("Sparkle");; k, X: Y) `7 j" Y/ J* N6 V1 b
- WiFiMulti.addAP("wifi ssid", "wifi password");
% ~# b8 F) y4 p" B - int tryNum = 15;
- M# F* H' @. D3 Z* \ - Serial.print("Connect WiFi");
; e9 u) a" Q6 G8 ^( ~ - while (WiFiMulti.run() != WL_CONNECTED) {* O' K: M" H" O# v2 F- K. J8 N
- digitalWrite(2,0);
% [+ D! s& t& f8 b/ E1 x - delay(200);( P# B( f; G; O% l- W6 n
- digitalWrite(2,1);( q% z, Y8 \* d5 `
- delay(300);9 Y% N' k/ v8 k; f) j& Q" U) d
- Serial.print("."); z$ s" s+ ~4 ~, I0 m
- tryNum--;
7 v; U1 Q6 l( ]- A8 u9 i - if (tryNum == 0) {
, P9 q" H. p$ r9 M* d$ v - // 1min6 I" ?, w3 p1 g" ~4 f
- // ESP.deepSleep(60e6);
% ?$ ]# ` M( p% [% h9 v: M* W - ESP.deepSleep(0);
6 s" n4 T, \! e" Q - }
A* W/ N. H) V l; q+ f9 c - }0 j' Q4 `1 W# ~; O) u; T6 E1 m, N) B- _
- Serial.print("\r\n"); h8 A' q. U y8 I) X/ y, E% P
- digitalWrite(2,1);$ M& O# Q9 M, X, ^
- Serial.print("IP address : ");: f3 R: s+ |1 z4 |* K, j7 t* R2 N
- Serial.println(WiFi.localIP());
+ \* Z- i3 E: r8 C! } - server.on("/", HTTP_GET, [](){
% D! O, v* |, y1 d+ L+ o) ] - server.sendHeader("Connection", "close");
/ `2 B* z |3 u - server.send(200, "text/html", serverIndex);; b5 ?1 z& T" P. G7 s* r
- });
- W3 k; `* Q6 E; T - server.on("/update", HTTP_POST, [](){: ~* |+ ]/ \2 {4 d. f3 s/ Q0 y
- server.sendHeader("Connection", "close");4 j+ j* ~; r& B4 I2 P0 l
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");2 j8 C. F* {2 @, U2 Q
- ESP.restart();
) u8 `* V( H" y% w - },[](){
2 D$ W, Q% c5 z3 R7 c3 e - HTTPUpload& upload = server.upload();
" G$ M6 T7 _! {4 @/ V2 q" d F3 j - if(upload.status == UPLOAD_FILE_START){( l% s) x0 `0 R* ?5 c
- Serial.setDebugOutput(true);
) n$ H* r, W7 x; C# C& s# ? - Serial.printf("Update: %s\n", upload.filename.c_str());$ C* n4 B3 A' D4 O, T7 }5 ]
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
. |4 z' R/ k0 @ - if(!Update.begin(maxSketchSpace)){
. X2 P6 a) R! ^& N, z6 V - Update.printError(Serial);; {2 @+ l0 y; S5 t7 x
- }. d& X9 E) l$ d4 o, @
- } else if(upload.status == UPLOAD_FILE_WRITE){
& r# d2 L# Q6 B' n! V9 | - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){ P) E3 q! S; h, Z( D
- Update.printError(Serial);, ]1 h$ h: k' M- m. j# b' e
- }
: ~4 h& K$ W/ n2 J& f, L1 L - } else if(upload.status == UPLOAD_FILE_END){; k( g8 L2 ~- n1 @/ I O! T
- if(Update.end(true)){
( u% ^1 M$ S$ k; y2 c4 E - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);7 H' \9 n, f/ H' ]. e1 a
- } else {
! v, Z) ?6 D# J: S$ j' H. W, R) z - Update.printError(Serial);
5 ^) h+ |0 k# G2 M) @' Q - }( I6 V% N, A0 a# t, S! |( z; j0 }
- Serial.setDebugOutput(false);
4 F4 F% e4 |/ U& r8 v7 w* T! q - }
6 f$ E& [- o& s; \8 ?1 {" R - yield();& a( W7 Z+ B6 J0 P: F
- });
0 K. I& [* N& R; e - 0 f0 z4 g2 ^8 b4 h5 U' e$ o
- digitalWrite(2,0);6 q; x- b7 R( w2 ^. O$ z
- mainAction();! E' Z. `! z1 [3 n2 a
- if (digitalRead(0)){
2 M8 g/ s! J7 C - ESP.deepSleep(0);) T, {6 ^7 U# L6 k8 R% V$ e5 k
- } else {; I3 e) O! U# `5 E/ _
- server.begin();
5 n* L0 ]' O5 u; b - }
: r6 \* _6 V0 t7 c% X$ B& n' S1 E - }1 ~% g% ?" _( v3 {. s( e2 }
- void loop() {
) @4 d1 M+ }4 c, a% y% D9 T - server.handleClient();- E& I0 o- l. g
- delay(1);
2 Q G$ k' b3 F9 }+ o: T - }
! b: P- n" t: {8 B1 {3 p. ~/ W - String doGet(String url){! t7 i7 c4 n4 ^* {4 |( M R. g
- if ((WiFiMulti.run() == WL_CONNECTED)) {. M7 K n1 Z- r, W) N. D
- HTTPClient http;1 ^% o: N' v. Z5 Q' A
- Serial.println("[HTTP] begin...");3 T4 g L- M" n6 X, Y9 I
- if (url.startsWith("https")) {
: T p* g J& [$ e - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
$ e/ m- x. u* s/ l' B( P - } else {8 H, D/ _$ v& Q, J
- http.begin(url);
5 ~: J; l b$ n: ~) [% c - }
) D% z- R0 n1 V% q0 p* j, x - Serial.println("[HTTP] GET...");% n: v5 X8 B: T; ]' u% A! S
- int httpCode = http.GET();
' j: }1 f) {2 W8 j! J - if (httpCode > 0) {1 h, f8 ~) y6 v
- Serial.printf("[HTTP] code: %d\n", httpCode);9 I4 B3 x6 G7 A" Q' a" Z1 x' Q7 A) z
- if (httpCode == HTTP_CODE_OK) {
8 V0 J+ b9 J* p, } - String payload = http.getString();
7 p% t. g1 l8 Y - Serial.println(payload);6 b1 W6 F, F+ l* R% q& c
- Serial.print("\r\n");
* _' M5 v C$ F' A5 F - return payload;/ U- @3 R' [, R( ?( k* Z
- }
; f" Y4 L0 ]7 C - } else {
; i T" L% M& R0 k- q% w - Serial.printf("[HTTP] GET... failed, error: %s\n",% C- p. r6 C( F k; Z
- http.errorToString(httpCode).c_str());
* G, [2 {3 T4 B, ` P$ O- O- y - }
& R1 G t, G3 b+ N7 x+ H - http.end();! z ^ [& D$ w. q/ F- j7 s+ T3 [
- return "";, C9 w# x9 z: {! ~6 b* Y4 m
- }( N- q. ~6 k/ ?( v4 W- D
- }
; J |# G ?. q3 P$ [" [4 d - void mainAction() {/ i. q( ?3 {8 M" L* V. C
- // 发送请求! u1 d0 K/ Y# S/ A
- doGet("http://google.cn");
5 j$ O$ m6 O6 W* i - }
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