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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)& e4 h( l6 ~- }% n; T
- #include <ESP8266HTTPClient.h>
5 j- K, y7 N' O3 k - #include <ESP8266WiFi.h>% E6 h9 E" q4 Q0 B
- #include <ESP8266WiFiMulti.h>
* |9 a6 C% X- |" ~3 P5 [& D4 o - #include <ESP8266WebServer.h>% }; e; c t: U% P$ k5 |7 J/ R, o' G
- #include <arduino.h>
, x, G( K2 n7 a - ESP8266WiFiMulti WiFiMulti;* _9 N7 D" S8 E( z
- ESP8266WebServer server(80);
3 ~6 `0 l* x* I1 b4 K/ Y) L, q8 g3 r - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
. v$ G6 G0 }+ \0 g - ADC_MODE(ADC_VCC);* s6 |& y2 |$ p# k0 H
- void setup() {
: x! g3 @. ?& [, {7 {' ` - Serial.begin(115200);
1 d# y5 z: O9 x9 o& w) R - Serial.print("\r\n\n");$ F, B- k& c# z2 x+ r
- pinMode(2,OUTPUT);4 o/ ~. s. @' n# z" F1 x* B
- // WIFI
4 _4 X; J, c2 L, Y5 m! I - WiFi.mode(WIFI_STA);
2 @6 p% P: O: V) M. X1 L# g: \; K" ? - WiFi.hostname("Sparkle");
( Y# l# M0 o6 h. x7 S9 Z1 c - WiFiMulti.addAP("wifi ssid", "wifi password");
3 S9 N, Q; J" B0 F7 S* N - int tryNum = 15;
/ W. f7 @% v* \/ H" L - Serial.print("Connect WiFi");
p w) m0 \" P) V& T - while (WiFiMulti.run() != WL_CONNECTED) {
: G7 ~2 b3 R! p% l6 @ - digitalWrite(2,0);
5 e" t4 V" S% M5 N - delay(200);
; N3 D) j# H( R6 `7 i% u! f - digitalWrite(2,1);
0 A' T a. f3 F9 _: _, B" G - delay(300);% s. ?+ O4 q, ~
- Serial.print(".");. c. H; L% s( J4 }7 @. I
- tryNum--;) V. @( ^$ L2 Z% a9 O
- if (tryNum == 0) {
- h J# Y# h* V - // 1min7 k0 ]3 ~6 c' J$ T9 s
- // ESP.deepSleep(60e6);5 m: h" }& i& m) |. [8 s
- ESP.deepSleep(0);
- x5 n/ ~ S( u* D3 y6 t - }) K$ J, i3 l) m7 I
- }
( L& N( ` N& a3 Q - Serial.print("\r\n");7 Z9 K( }. \" g" E& f+ ^; ~/ ?
- digitalWrite(2,1);% }& o7 y9 _9 \: J1 U6 d
- Serial.print("IP address : ");
% F. I/ C7 @7 S: X2 F - Serial.println(WiFi.localIP());
9 c; i# ~$ `: y( E. d z - server.on("/", HTTP_GET, [](){' a8 `* S& B, u1 [; r3 m+ k) s
- server.sendHeader("Connection", "close");/ W, P: ~6 B! w! f( q
- server.send(200, "text/html", serverIndex);
8 c/ K" e4 O% F$ J5 v - });2 k9 Q% d x) J8 W
- server.on("/update", HTTP_POST, [](){3 \' x% G4 z: _: |$ D3 l
- server.sendHeader("Connection", "close");
4 Y5 f0 x, I8 f; [4 |6 J, H - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
7 k0 i5 m$ |: z& l" O d - ESP.restart();
0 d8 ?6 ~ p5 m% _# r6 O- a - },[](){
7 s% c" X: w- _" o |8 C - HTTPUpload& upload = server.upload();
/ e! D+ P% h X% @2 l - if(upload.status == UPLOAD_FILE_START){
% k. D* L* z4 u& M - Serial.setDebugOutput(true);; W* P, h, y: M2 S" K5 |5 Z+ b
- Serial.printf("Update: %s\n", upload.filename.c_str());
( T! y% {0 I! U0 g - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;: Z T3 }) P3 E+ f; o9 W
- if(!Update.begin(maxSketchSpace)){
/ G, e- z5 x; \" I S9 y - Update.printError(Serial);
% b/ O7 q/ b; Y' O. ~ - }
( [. O, b/ d1 \5 v7 H1 K0 ]9 D- ] - } else if(upload.status == UPLOAD_FILE_WRITE){
8 l9 r, X# Q; y+ y - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){, w& R, V7 f4 E
- Update.printError(Serial);- I- B8 H8 H7 L) D
- }9 {3 g+ K; A4 E4 }4 }4 m- R5 W
- } else if(upload.status == UPLOAD_FILE_END){% |4 g$ s8 T3 }, |2 e+ H
- if(Update.end(true)){9 _/ T6 }: u1 o" {
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);5 @8 P" n1 {& N: ^; L' @; k! q6 o
- } else {- F( A( m+ n& C: e, e- k2 e
- Update.printError(Serial);
, {. g8 N* }: r" g3 m8 ~ - }$ w8 w6 f* S. Y+ i
- Serial.setDebugOutput(false);
3 V" e/ j$ B- s2 j. X; y# d- B" Z7 q p - }" ^$ c! B/ |' |
- yield();. i! U- U, P/ X& h7 u, i5 |; A/ c
- });
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- digitalWrite(2,0);3 ?3 u8 s9 u' U5 E( ^4 `, Q
- mainAction();. E! s- u6 c6 \, ^: f# ~8 @
- if (digitalRead(0)){
, v d$ }9 p3 ~2 p, V0 C9 G3 h' b# q" l - ESP.deepSleep(0);" `! F4 s: l1 l2 p
- } else {
8 J; ]' O! _9 L - server.begin();& M: G0 ~& n1 `4 G0 G
- }
. W5 e) ]. j6 Q+ ? - }
, y7 {& {7 f% E - void loop() {* ?! o' j# b2 ]4 }: A2 u- r
- server.handleClient();! ]. T( L) j* B8 q1 i
- delay(1);
! G5 D3 @7 H7 X) n8 u. w - }5 s8 K) t3 e4 S# F/ S
- String doGet(String url){) Q1 f7 I; N( Z. F0 V) A) x1 t
- if ((WiFiMulti.run() == WL_CONNECTED)) {
& |, x& c* N$ K+ X& E+ [ - HTTPClient http;
8 E- U$ U8 n+ J4 P& j5 \ - Serial.println("[HTTP] begin...");0 f& o; K6 b: u( q( m
- if (url.startsWith("https")) {
/ \% {/ W- P2 E9 E1 R; { - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");4 b) r, A3 |+ n3 R' ?! c
- } else {2 X& L; v& A7 k9 F! K0 R2 N
- http.begin(url);- x1 \( y" I( H. c: _
- }
$ \/ E7 k/ o9 o. B: M1 E8 Y - Serial.println("[HTTP] GET...");
v# o# U. ~7 C - int httpCode = http.GET();( w) L, W+ w* k' t; y+ X
- if (httpCode > 0) {9 H) T7 t ]* s" {: B. B* w
- Serial.printf("[HTTP] code: %d\n", httpCode);/ f d& m: q1 U
- if (httpCode == HTTP_CODE_OK) {) E: B6 ^1 _+ W8 v% d5 [
- String payload = http.getString();( d1 A$ ?; d/ P! o: d, O
- Serial.println(payload); a2 L7 Q$ {# H' }6 U6 y) a
- Serial.print("\r\n");; t W4 v+ d7 N( K
- return payload;0 H% Z3 u; M8 ~2 z
- }0 j8 d8 A( A1 D; q, i, Y9 q
- } else {( B4 y! P* M) W% l
- Serial.printf("[HTTP] GET... failed, error: %s\n",
7 h! }( i! T m5 d - http.errorToString(httpCode).c_str());
. T$ \' G6 [# T, Q( j0 h - }
! d, k/ i( F# ^) ?6 ~ - http.end();
) A% s5 e) r. j - return "";
" k, |, q% n0 z$ Q6 J4 I - }
9 w; r* K6 s% \/ O- f+ K( z' B! ^ - }
7 I/ K/ C# c' M) d$ z4 z5 c! { - void mainAction() {# O: U, V6 `' W1 Y; f: u
- // 发送请求0 w7 f s% y9 U4 V; J
- doGet("http://google.cn");
! S4 s3 O2 X3 F1 S! u - }* S$ I: Y+ H% N& H5 U
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