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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)4 F# O0 [; p4 p+ c
- #include <ESP8266HTTPClient.h>8 m2 c" Z8 B8 c4 J. j* _* U
- #include <ESP8266WiFi.h>
$ K8 d5 P# U; h/ S! H9 a4 o - #include <ESP8266WiFiMulti.h>
+ s+ O' u" n- z' N8 w - #include <ESP8266WebServer.h>$ _3 K; N& r2 m1 K9 q+ F
- #include <arduino.h>% q# \" S4 n2 j1 ?, |
- ESP8266WiFiMulti WiFiMulti;
4 E. U, Y! c$ V - ESP8266WebServer server(80);' [+ D" h, N: A2 Y" B
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";/ }" g( X/ ]& A. H7 L
- ADC_MODE(ADC_VCC);; H- q, S9 x. o! \ M
- void setup() {
+ y0 M, C9 a. Y5 R# r6 K1 K: d6 K - Serial.begin(115200);
T, q4 v S( a# x& N: s - Serial.print("\r\n\n");9 t% h& Q- z; C% G9 G
- pinMode(2,OUTPUT);
; i" W: T# z3 C - // WIFI* E6 r/ w$ H( y$ I, v: @+ f
- WiFi.mode(WIFI_STA);
" T1 q; w: G {$ d1 k5 j7 ] - WiFi.hostname("Sparkle");: B# e; v! Q3 B6 V0 w9 c K
- WiFiMulti.addAP("wifi ssid", "wifi password");% W/ J" o# l7 e( p- Q
- int tryNum = 15;8 _ l2 a; z( m1 `: ?
- Serial.print("Connect WiFi");
6 s$ V6 F* `% O - while (WiFiMulti.run() != WL_CONNECTED) {3 e9 y8 c8 |- u
- digitalWrite(2,0);
, }0 ]7 ?9 c% r- @% q - delay(200);
. b& h7 D! i! N# ~2 A5 t - digitalWrite(2,1);
7 Z) r; ` s8 K7 c! N* K - delay(300);
$ k5 @8 e* R- l - Serial.print(".");
( n9 G9 Q9 {- z! l+ B/ m: x' M4 ? - tryNum--;+ b2 Z8 s' V9 }% o" l& \
- if (tryNum == 0) {; b* l- J; _3 A }
- // 1min$ g1 k; F7 z- W6 i W; Z D
- // ESP.deepSleep(60e6);
m, w, h- N+ f& c& | - ESP.deepSleep(0);7 R4 Y* W# U9 N+ u1 T. \" a
- }/ q: r% E2 K! d2 s: E! P- ~ P
- }
9 Q& I6 \' h. Y: |2 S3 u" S4 o - Serial.print("\r\n");# G! j, A$ h- Y& H
- digitalWrite(2,1);
# y+ u4 \0 {2 _4 i - Serial.print("IP address : ");( N/ @8 U+ L- C5 f0 Q8 h: t$ s3 D
- Serial.println(WiFi.localIP());2 a) I, [# E4 [% I2 j. M
- server.on("/", HTTP_GET, [](){4 ^/ X" y: v4 l1 e
- server.sendHeader("Connection", "close");8 |$ N# S* g% Z
- server.send(200, "text/html", serverIndex);
9 Y$ y: n" c; E# p - });% U/ v8 L3 _2 c/ Z2 T
- server.on("/update", HTTP_POST, [](){
( `9 @2 }/ p; _. T. H( X- B - server.sendHeader("Connection", "close");) |* t' _1 c, H% Q8 |9 ]
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
, b, @1 m6 {4 A# e" J7 d# I - ESP.restart();
7 _0 D0 g1 w5 H* S - },[](){
7 \. F% v7 G! _9 J0 T# w9 z! W - HTTPUpload& upload = server.upload();
" m" x6 u' X+ p* O H - if(upload.status == UPLOAD_FILE_START){
/ ~& l+ j8 u% y* a& f! E9 i5 o - Serial.setDebugOutput(true);
/ A7 x* K+ ^1 \. E/ {" n - Serial.printf("Update: %s\n", upload.filename.c_str());5 o. c$ M" B/ U* s! d
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
6 T9 V# l5 ^; N; \; } - if(!Update.begin(maxSketchSpace)){
4 y8 e8 z' ?) A: I# a- O' E3 | - Update.printError(Serial);
5 x. H* Q% N/ m y6 z1 z - }4 l6 e2 r) w3 x9 r+ a
- } else if(upload.status == UPLOAD_FILE_WRITE){
- y8 D6 C5 ~% i( J - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
# d8 J! {0 F$ E! N3 o, ?+ Z4 ~$ l - Update.printError(Serial);+ J6 d! q% R* g# b
- }
, Z/ K0 @9 G% j) H6 d - } else if(upload.status == UPLOAD_FILE_END){4 B: y& [6 V% H( f
- if(Update.end(true)){
. P) ~6 S: @& u6 g0 v! W4 f - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);- G. k0 Y1 z: f# l8 ^7 |
- } else {
1 l+ m: t, {5 j- k - Update.printError(Serial);
* N% U1 T6 {8 _- ? - }: j$ r; p7 G% x W+ m
- Serial.setDebugOutput(false);
- w) O$ Z" y3 u2 q9 i - }3 v1 ]: _* A" l
- yield();3 M: V& @% W, g! \7 r( r; W( M
- });
8 ]- O) O' B& z7 q" V/ N -
3 x' O8 X$ R2 i1 P! L% O4 N - digitalWrite(2,0);4 ^. D+ h! p- T- @" p1 o v
- mainAction();
3 W4 A: d: w$ D* Y; ` - if (digitalRead(0)){
8 B" X) V) d ~/ }+ m7 V/ O+ \% _% d - ESP.deepSleep(0);
8 [8 A+ H8 K, E5 H7 { - } else {
$ y* B/ e! a1 G, R! f) | l - server.begin();
. B+ q% [3 Y- O - }
" W- u6 P) [. f+ ~5 _" W5 N - }
. }4 Q: a3 p9 E$ O& x2 x: ` - void loop() {& c8 X+ M6 T) F0 R/ |+ U
- server.handleClient();
6 E8 |; P0 [* Y0 Q* r3 g7 M: F - delay(1);
+ ?1 W! Q. l5 I4 l3 D - }
3 D4 Y) k1 t% [8 q8 m: u, g0 N - String doGet(String url){
) k$ O# o/ \& q9 L6 ? - if ((WiFiMulti.run() == WL_CONNECTED)) {
) R% y" ~) n' |2 i - HTTPClient http;
0 \9 K; B8 ]& l* P2 D8 T" ^ - Serial.println("[HTTP] begin...");$ @5 g! v6 d% v- ]. o
- if (url.startsWith("https")) {; x! C$ a o) C0 O, U
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");8 L* h' o7 F! @
- } else {
- u' [- v$ k4 i" c - http.begin(url);
- H3 ^. H6 K2 [6 F7 ]7 ~ - }
! @8 x1 \5 g7 I( `; |6 D, J5 U - Serial.println("[HTTP] GET...");
- ~: l! d9 M+ e% g4 g1 Z - int httpCode = http.GET();
1 W) V; p$ i# h. l - if (httpCode > 0) {' |; I% O5 L: D. K- E2 u$ M
- Serial.printf("[HTTP] code: %d\n", httpCode);) n7 V% N$ R3 o1 V3 V% B8 V+ v
- if (httpCode == HTTP_CODE_OK) {
: p3 e, f/ B1 ^6 r* J - String payload = http.getString();# V( C7 T* a. ~: h2 J% h
- Serial.println(payload);
( h% ~. {$ d; z: M. W6 E4 Z" \# ^ - Serial.print("\r\n");
$ P7 K+ w0 P3 X* d1 L- D {1 q - return payload;
$ Q0 V+ ~2 k. `4 v$ j) f - }
( f; |8 y& O. E - } else {
J1 r: F" z& }6 T/ R - Serial.printf("[HTTP] GET... failed, error: %s\n",
- W- z: F6 `% v( D - http.errorToString(httpCode).c_str());
7 X$ V0 b, w2 [# u - }
8 ~6 F3 z9 T" d8 c6 E ~) ~ - http.end();
; R. V: B* Q1 L. F3 E6 P - return "";
8 b6 d6 v; ~4 l5 L - }
. j0 K4 N5 ]. l5 L$ J - }
4 B: M2 ?9 V1 R, E - void mainAction() {2 m5 [, [1 | ?; S3 j P) t
- // 发送请求" v/ x" P3 ~0 q4 r2 D$ S
- doGet("http://google.cn");
: ]. r- i1 G: G6 S& D: l - }) E0 L$ @, O) G6 q+ h! ?
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