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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)
P$ E( _: d% p& n' c& c8 e6 G* z- #include <ESP8266HTTPClient.h>4 j, d6 K# x5 y" u7 O
- #include <ESP8266WiFi.h>
; J" L9 a$ T4 H; p1 z t# N' t - #include <ESP8266WiFiMulti.h>3 d3 ~2 u4 y# r& T
- #include <ESP8266WebServer.h>
8 E* T/ b' v: \% K* l - #include <arduino.h>$ Q- E3 o0 a" b! K6 a# n9 Y
- ESP8266WiFiMulti WiFiMulti;
5 `2 Q+ m" L' h, r2 W v - ESP8266WebServer server(80);" ^5 `+ j& g5 R7 @& t$ h+ f
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
- V% h1 Z( \+ F6 D - ADC_MODE(ADC_VCC);* i& Y0 ]5 v7 \1 f! n- [6 ^4 g- T. Q6 S
- void setup() {
# @5 g- \7 A* n I1 O" W - Serial.begin(115200);4 A$ @9 \% t" j# M
- Serial.print("\r\n\n");
* T4 U- V0 z8 x- u, |4 @9 Y - pinMode(2,OUTPUT);
% [7 g: t1 _* u1 b- v6 F - // WIFI
( z5 }& R1 }- t, M$ H5 n) I - WiFi.mode(WIFI_STA);9 h, h" Z& L3 e1 J" S
- WiFi.hostname("Sparkle");9 I8 O0 v: R% `" \8 E0 v( N& P
- WiFiMulti.addAP("wifi ssid", "wifi password");
2 `) A8 X/ K& m - int tryNum = 15;+ r) P& _! D% s! U
- Serial.print("Connect WiFi");/ P% R6 c8 w7 f0 G) y3 I5 o7 ?
- while (WiFiMulti.run() != WL_CONNECTED) {+ }$ m' {" t+ I2 [: q
- digitalWrite(2,0);+ ]1 {8 k6 g4 D, J
- delay(200);& g* V( ~# D. C- G! K- q
- digitalWrite(2,1);
- I) p9 a- C2 [% [2 ]4 V - delay(300);
/ ~/ g' c# o- C* B0 B5 b - Serial.print(".");0 b) n2 t o3 J, [- u) V
- tryNum--;
. X" a5 H/ D, @7 |" z$ d - if (tryNum == 0) {7 R$ X6 v, C# A( u4 K
- // 1min: u& D. t9 r$ M0 x
- // ESP.deepSleep(60e6);
. S9 u6 x% D2 [9 j - ESP.deepSleep(0);
# a8 c6 x4 P1 z p9 [2 K+ e - }
& `' w2 U1 A, O* j - }1 p" a7 I/ _. T4 _: U
- Serial.print("\r\n");
* o H8 J# _5 ?8 m' M0 G% k - digitalWrite(2,1);. A, A5 d$ O, @6 L' l& W3 P4 E% _
- Serial.print("IP address : ");
8 B1 k% p2 j# P/ d) L - Serial.println(WiFi.localIP());5 d% e* Q; u/ y( w2 D
- server.on("/", HTTP_GET, [](){
9 @9 U5 ~+ ]- |9 h6 ]0 O - server.sendHeader("Connection", "close");
$ x" G" i; J4 ~7 y( Y. H% g+ b - server.send(200, "text/html", serverIndex);
! m& u6 T2 v! O% U) e - });
4 n5 Y" v' f5 v - server.on("/update", HTTP_POST, [](){% ^: j; [8 |6 J" d5 Y
- server.sendHeader("Connection", "close");
8 v; C3 }, _5 a - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");$ z5 n, I3 A5 x) ^/ T6 v
- ESP.restart();
0 x4 `8 d3 m0 i! C4 t( K1 q - },[](){$ \5 b4 C* B% x- `
- HTTPUpload& upload = server.upload();, A" ?: A! p- q8 z# y+ L3 M0 \- Z
- if(upload.status == UPLOAD_FILE_START){
7 A/ r4 n3 w9 n4 n Y - Serial.setDebugOutput(true);# x9 t! y, u- W5 C- E
- Serial.printf("Update: %s\n", upload.filename.c_str());: j- I$ l9 |0 {5 U. A: y% P" Z, C
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;) q1 M$ l5 X6 n6 G
- if(!Update.begin(maxSketchSpace)){# X5 H% O, J# D2 |
- Update.printError(Serial);
3 p5 k$ M/ `2 l8 \ - }' E. W2 s3 V+ v9 `7 C
- } else if(upload.status == UPLOAD_FILE_WRITE){
" _8 i; q/ {" k) r$ W6 f5 [$ r* A - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){0 n2 D" Q* v0 `1 j r) @
- Update.printError(Serial);
8 @0 J3 A$ x# f6 v2 {) p8 g - }* c- A( ~" g% U' T4 K" g1 W, p
- } else if(upload.status == UPLOAD_FILE_END){7 i& {( p0 f+ `
- if(Update.end(true)){
2 N7 D/ v- L$ m5 y - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);" `9 ^% D& J* a$ b7 F( ^1 N: G
- } else {
: }1 ^8 V. `; R) e7 Z( x) C$ c - Update.printError(Serial);* g8 k {4 U( l) L7 x
- }! L5 J/ e! b# ~1 j6 i9 f i5 f
- Serial.setDebugOutput(false);
1 P b" n! ^# ]8 _ - }3 b( _1 m4 `% h3 ^: |# }
- yield();
8 {/ }" P4 p. P+ b& f5 c, c - });7 x! G+ S: R }! Y( ]8 n
-
6 J5 K) a' c- z% w D+ c - digitalWrite(2,0);+ N7 r& J1 s8 S
- mainAction();
1 D( x* g# y h" t" F - if (digitalRead(0)){
+ A# l3 t; I& E4 v- Z7 u, v" x0 K - ESP.deepSleep(0);1 P0 k8 F! | [& e: o! E
- } else {
# L; C8 D9 U9 z9 Q - server.begin();5 A. |7 t5 ^. |( ]6 ?
- }
- q- P2 Y2 P6 x; T4 K - }' Q/ @! v$ L& @; I: Z
- void loop() {
4 n0 n) }( k7 a6 }/ q5 ? - server.handleClient();
- H: ^! g7 o; x( N8 r - delay(1);
/ I3 o" {1 _% I4 b: P4 k- _ - }
3 ^- _6 E0 E3 C3 W- V - String doGet(String url){
' R: {8 Q4 F. }' Y - if ((WiFiMulti.run() == WL_CONNECTED)) {! y4 s: l8 h/ P! D6 u2 D8 r
- HTTPClient http;
9 ?( `) h6 D" C2 z* m5 h - Serial.println("[HTTP] begin...");
6 r" ~6 c' D' Y; } - if (url.startsWith("https")) {
/ r2 v3 `( p: Y# I$ g& N - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
$ S9 t5 I0 B. s+ F3 i: I+ c7 h% N - } else {
5 O. A S% @4 I' Q - http.begin(url);
- _# Y9 v0 k- ?7 h - }
% _# @# j& }# n. d& Z - Serial.println("[HTTP] GET...");; W* [" \" l5 o7 }
- int httpCode = http.GET();
3 x1 ~# h7 j3 T+ _$ ] - if (httpCode > 0) {1 K; r8 w: D. V6 X1 _
- Serial.printf("[HTTP] code: %d\n", httpCode);$ J) P5 e9 l7 R- ~" h
- if (httpCode == HTTP_CODE_OK) {! ?7 _/ T; s7 P( A/ H4 k: c; f3 f
- String payload = http.getString();; H0 X6 L' m& \9 |9 ^
- Serial.println(payload);
; |, b% q' O% A2 {& _$ y& D - Serial.print("\r\n");
1 M1 u* G. U. h - return payload;
8 y: w* u$ K" e* f3 h - }
+ l# f4 G+ F) ` g; I - } else {
$ H+ ~- L. w7 r: f. E | - Serial.printf("[HTTP] GET... failed, error: %s\n",8 }9 J( ]0 k* ^ Z" ~
- http.errorToString(httpCode).c_str());4 ^8 u: K, q2 i( F% K
- }
+ ?" p N8 |8 ]4 d- D0 U - http.end();; f( A& x( M8 H3 c6 X7 S
- return "";( U' ^" J8 u' @; n* ?$ y9 {
- }
4 w) |) X' L: G4 V - }
7 w$ Z) q2 S: V. I - void mainAction() {
, A2 P2 p* j4 U4 z7 z" w' g - // 发送请求( R2 {+ w5 w% F/ L4 a+ n+ }
- doGet("http://google.cn");
0 D( E8 L- S0 B0 } H2 @ - }( q" Z$ M7 i. Z# Z4 p& \; B
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