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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)
" v; B1 ?( t9 U; i8 {0 S$ s- #include <ESP8266HTTPClient.h>
; F, G$ g/ N8 ~" B( l; E2 D1 u - #include <ESP8266WiFi.h>
, k' P1 n! y$ a, Y0 \: m" K - #include <ESP8266WiFiMulti.h>
: o7 U1 D* ^5 X+ p( J6 d3 ~ - #include <ESP8266WebServer.h>
1 } q( l% X3 q6 b; e - #include <arduino.h>; K8 n. X5 ~$ Y! n. ~$ H
- ESP8266WiFiMulti WiFiMulti;/ z7 b' l! U5 Z$ I( G
- ESP8266WebServer server(80);
t% S: c- B3 X, ^5 V7 A - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";! R" `3 ]% Y0 E1 b1 N
- ADC_MODE(ADC_VCC);
( s7 a- W7 \6 S - void setup() {# X2 ^! j3 u$ X/ D5 M
- Serial.begin(115200);
+ \$ T6 w% Z* h( I4 |/ _$ R! r - Serial.print("\r\n\n");3 k& v: P' [8 e8 g4 P+ b# O$ R
- pinMode(2,OUTPUT);8 ?* l. K l$ r F
- // WIFI" j/ k, U8 g( ?7 M9 j
- WiFi.mode(WIFI_STA);
8 q9 T8 K1 N& _# H# i! K/ V - WiFi.hostname("Sparkle");3 A* E7 G1 s, H8 ?+ t
- WiFiMulti.addAP("wifi ssid", "wifi password");
; D, @' v6 G5 |% a9 S6 S: u: b - int tryNum = 15;
( g m* h6 m/ s9 C - Serial.print("Connect WiFi");
# I# E* j! N! n; c - while (WiFiMulti.run() != WL_CONNECTED) {% L# ?6 x r7 h
- digitalWrite(2,0);
( h/ w# j" ~, w1 X - delay(200);
6 x) \8 c% i2 Z, L - digitalWrite(2,1);
$ v% m/ ~0 y4 A+ h% q' l - delay(300);
1 a+ a# k. T( r2 ?" q, J* f* C- l8 { - Serial.print(".");
( O R5 I: Q4 \6 j' I - tryNum--;( ?! x: X2 H$ L7 }- o3 d- Q; s4 C
- if (tryNum == 0) {0 K: P+ W% ~. Q! F. u. M% C
- // 1min
7 [# |+ U) G" E - // ESP.deepSleep(60e6);* G3 t$ g/ l$ v$ r
- ESP.deepSleep(0);
, {3 G4 w% Z# M8 Y - }* k4 L, o5 q6 |6 b9 ^4 C
- }
0 S% E: R4 w. K: R# a - Serial.print("\r\n");4 \0 O8 T0 p& Z. D! Z
- digitalWrite(2,1);; `' b7 N3 B; K- ~# h& B* V
- Serial.print("IP address : ");9 l, r3 H1 s* k! P. U, u
- Serial.println(WiFi.localIP());9 [! A* |2 Y! y. f& B; \: L; _
- server.on("/", HTTP_GET, [](){
- Z( |0 N, q6 B3 e. s - server.sendHeader("Connection", "close");
) ]$ y! T$ |; |) }, @7 p5 r0 z - server.send(200, "text/html", serverIndex); b7 X4 ?2 \: A5 n
- });0 }/ j3 D8 m" }1 Z4 ~
- server.on("/update", HTTP_POST, [](){
- X! Q+ p9 _7 j' n- L - server.sendHeader("Connection", "close");
+ t/ b; h. I: k7 R/ U5 Y4 S( m - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
% Q, g7 _) T- j7 U" ~8 A" Q - ESP.restart();
; c' g5 P0 K9 p5 p" M - },[](){$ b+ p. C' ?5 X8 E6 D
- HTTPUpload& upload = server.upload();
" K* ~! H- _- G% i# f: o, {( m0 R# m - if(upload.status == UPLOAD_FILE_START){
7 K M7 ` O& L - Serial.setDebugOutput(true);" ~* g7 K/ {9 u0 h$ Y, Q+ `5 p& m
- Serial.printf("Update: %s\n", upload.filename.c_str());
" C( ]8 O( N3 R- h9 { - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
& D) u% u0 Z: R5 L5 b - if(!Update.begin(maxSketchSpace)){
3 }3 R6 c9 c. h) j, s6 e# n - Update.printError(Serial);
$ S. x& j3 Y4 ] - }+ B3 c" c% X' U$ a4 n. W1 E3 F
- } else if(upload.status == UPLOAD_FILE_WRITE){
; Z* x7 g/ Q9 `# H( `: _. L - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
# e9 t8 u3 z' j8 z( Y! l - Update.printError(Serial);. u3 P, S( K( B+ U0 M$ Z- K
- }/ r- N" l/ ~; @: ]
- } else if(upload.status == UPLOAD_FILE_END){, j# O( L8 E9 X) k; E
- if(Update.end(true)){
1 ]1 M6 M U; }% s - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);' c/ q) g' P4 @- i6 x H& [- X' D
- } else {
+ h4 ]5 Q9 r7 O& D3 ] - Update.printError(Serial);, M/ s3 B' }9 x+ j7 K \
- }$ p6 H$ Q# |: T
- Serial.setDebugOutput(false);# m) J# r0 H% Z2 y9 r
- }
' N" a9 N, ~, Y/ e: p9 j. z. B - yield();
0 F p3 U. Z) b6 g3 T& @. v8 f: Z - });* E" [/ \( c. z' j3 `- Q
-
# P w2 B& o. ~8 Z4 i - digitalWrite(2,0);3 c6 p; i2 ^$ _1 t( c) G% [
- mainAction();
& P( t- Y0 g. F8 _# h4 q+ l - if (digitalRead(0)){
5 \4 Q% V+ C$ u* j - ESP.deepSleep(0);
! e6 R1 k: p% c - } else {" N& q2 f |9 m2 a2 l5 s3 {. e5 g3 U
- server.begin();
4 @9 u& g9 a: q c) J# ?$ ]5 a - }
3 u# @! }$ j* ^4 f - }
u, X$ W4 A) D - void loop() {& K' _/ e: I" J) I
- server.handleClient();
0 ~' t* B3 `1 _ - delay(1);
/ s9 r+ R ]& F* T - }, W! S+ o+ N) e& a, \: k Q. M
- String doGet(String url){
: m. B3 ]- C; ]# b# H - if ((WiFiMulti.run() == WL_CONNECTED)) {: r6 A' F7 Z3 r' C6 n& @) t
- HTTPClient http;& C O. G! ^$ F2 X" ^
- Serial.println("[HTTP] begin...");4 R4 o# @6 B) a# Z/ }3 L
- if (url.startsWith("https")) {
+ v3 A6 p% c- S9 Q; y# h5 u2 {6 W - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");2 I, P5 j- P& `5 o
- } else {
- ~4 r7 a- d5 W - http.begin(url);
9 v7 Y5 [6 \( h9 u3 }6 z1 l - }% H2 ?: @- R" @, H* K
- Serial.println("[HTTP] GET...");
4 }$ W) o4 j4 h$ Z - int httpCode = http.GET();
) ?- v; v9 ?" ?8 M - if (httpCode > 0) {
% ?% g9 A" \+ x1 @ - Serial.printf("[HTTP] code: %d\n", httpCode);
$ z( P: g, j x: a/ E C' B - if (httpCode == HTTP_CODE_OK) {
6 j4 @" P5 Z+ y5 x2 M" M - String payload = http.getString();( m2 s) `' y/ G) j6 j, X
- Serial.println(payload);' Z, h9 H) |4 g; b" Q
- Serial.print("\r\n");
: x g+ i$ A# l3 X - return payload;( U: T% P4 `" j( P
- }4 N& Y$ j( f# n R. u
- } else {
+ k7 S( E8 n* ~4 v. L - Serial.printf("[HTTP] GET... failed, error: %s\n",
0 w/ g: M2 H7 J* d* z5 B - http.errorToString(httpCode).c_str());
* v- b& c* m% P# L( E5 m - }! O# z1 U* d) S" J1 J
- http.end();
5 r# N5 b, `! j! d3 Z5 w) v1 t - return "";
( C3 F. e. {" q3 C1 X! v7 O0 c - }3 S1 S' [% Q3 x* L8 F8 R
- }0 B: a4 w9 E' [
- void mainAction() {) Z" d. C( x, H8 A2 S9 }) U. W
- // 发送请求
, O: r3 [, N- Y8 i! z - doGet("http://google.cn"); G! P# @+ v; J
- }5 F$ F1 p& q9 h- A/ R
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