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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)" b( b4 e. ?* S5 J+ E
- #include <ESP8266HTTPClient.h>
S1 I* V. g. r! i! y8 F5 l+ }9 v& l - #include <ESP8266WiFi.h># m% G+ ?, J3 T2 j3 Z" b* P
- #include <ESP8266WiFiMulti.h>
$ \0 X1 ?5 f& @5 g6 ~& y - #include <ESP8266WebServer.h>9 ?$ }/ J# m8 \' t; \
- #include <arduino.h>$ p6 x! G3 b2 _! _; y( j8 S" p! C U3 S
- ESP8266WiFiMulti WiFiMulti;
% S Y, @8 C1 N+ a$ G9 X - ESP8266WebServer server(80);- n/ x4 R' K0 \, \/ P6 \
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";( N$ f! z+ E/ l
- ADC_MODE(ADC_VCC);& X a4 Q" R! m5 [& ]
- void setup() {
. i1 z0 u& g( ^3 ^) ^; J- u - Serial.begin(115200);
' c! A- C7 r4 N. a - Serial.print("\r\n\n");
$ {# p# a5 k; f4 e9 D9 q - pinMode(2,OUTPUT);/ K( n" I5 L( V c- n; |( x+ ?
- // WIFI
1 Y$ ~6 W# a; c' D - WiFi.mode(WIFI_STA);4 [' L% F0 Y6 L
- WiFi.hostname("Sparkle");9 E5 r9 \/ N, |$ K
- WiFiMulti.addAP("wifi ssid", "wifi password");
- k- ^7 A; W. b0 S' l - int tryNum = 15;
8 R- g3 {' Z$ R - Serial.print("Connect WiFi");
8 t T5 ~7 L G - while (WiFiMulti.run() != WL_CONNECTED) {% n" E' Y% i% _' {! e* U- E0 a4 B5 i
- digitalWrite(2,0);. o/ s p( y# z8 E, u. q8 m
- delay(200);( V9 _# D0 p( [& }5 t+ v3 t( y
- digitalWrite(2,1);8 U- w& v- a3 _+ @: q
- delay(300);) Y, |! } N% y0 j3 w' g2 v0 s' W
- Serial.print(".");+ i2 R( b8 w# r* ] P( m
- tryNum--;; h& a& _& X2 f1 @1 ^
- if (tryNum == 0) {
$ d; d2 y7 h. T& E - // 1min
0 ?0 g( g; I1 Z# [- ` - // ESP.deepSleep(60e6);
% l' z1 }+ K# q1 w9 D g - ESP.deepSleep(0);/ R3 Y: t: } l9 g
- }5 {: k4 U/ \& B! }! {+ J+ N
- }1 P8 I. o& }" i
- Serial.print("\r\n");& }2 y, g# w* z3 D
- digitalWrite(2,1);) l+ s) D# G: f. m3 H: i$ L- F4 M
- Serial.print("IP address : ");
- P* I# T& m9 _* V9 G - Serial.println(WiFi.localIP());
) d( Q. _& l# D6 t - server.on("/", HTTP_GET, [](){
1 c/ C8 T* D1 ? - server.sendHeader("Connection", "close");1 k. t& m' j- m$ W
- server.send(200, "text/html", serverIndex);! d U+ p: z. l! c
- });
7 W4 b+ Q6 D c7 B/ j: ~ - server.on("/update", HTTP_POST, [](){
! j* L5 i/ a3 b: k+ p - server.sendHeader("Connection", "close");
L+ }& l7 D1 D - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");# M8 ]# n' s8 b, A- g7 |$ C
- ESP.restart();
4 x1 X2 i% B r - },[](){2 C0 g# Y" {$ y% l" t9 Z
- HTTPUpload& upload = server.upload();2 T0 R5 ~# y {5 h$ {' [
- if(upload.status == UPLOAD_FILE_START){- \: f0 z2 V0 s1 f: @
- Serial.setDebugOutput(true);8 L c3 d/ K8 t% i. {. C# y- C
- Serial.printf("Update: %s\n", upload.filename.c_str());
0 j5 r, V+ X4 K- @/ S+ F - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
; d$ T9 F) c4 W+ B2 o - if(!Update.begin(maxSketchSpace)){! V$ W1 | _9 Q$ c1 \4 y& S0 h4 ~
- Update.printError(Serial);
) i [2 _) P( Z* _1 C6 p3 O - }: W8 R" M0 U0 S5 _% D# a
- } else if(upload.status == UPLOAD_FILE_WRITE){0 @- X, ~8 h: j- f0 N+ }
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){! g# F3 Z* k2 s# G
- Update.printError(Serial);
. L4 E9 b7 Y. S; _ A - }5 I/ w; b9 H4 k3 \/ k: B0 a/ U5 `
- } else if(upload.status == UPLOAD_FILE_END){
0 T1 N) g3 \( K - if(Update.end(true)){
9 [8 f, R8 S6 o7 ~( [- C# \, z - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
- }" w* m \: i# h( a - } else {
- A9 ?! P) d2 p4 o+ ^ - Update.printError(Serial);& @" X t" e8 o+ i5 o+ M
- }5 y; Y% V* q. ~! M
- Serial.setDebugOutput(false);
* T$ A- H6 t5 O7 f, b* ?9 O - }
1 h- T& H$ t" Q! M: A - yield();
) U3 f. {5 n" t: Q' a - });# {, \) X) l, e/ z6 ]5 Q# p' ~" t
-
, K8 P9 M% K1 d8 @" V- @ - digitalWrite(2,0);
+ t0 C1 c5 z" d* [3 K& P# ? - mainAction();6 z- z- t- i( f R; _" f5 J" {/ f
- if (digitalRead(0)){
$ Z4 f6 H- @( C( w# Z5 l - ESP.deepSleep(0);% r% r& s: g- I5 @9 Z0 X$ b
- } else {
" l8 U$ E" p" V - server.begin();2 ^$ a. |: a: e( Z9 H
- }
% _5 n$ I/ z7 b! k- J# m - }
" S/ c3 o- W! g7 o1 u( h& v) u, _( S$ V - void loop() {" v% u) D6 ^0 F' G" D, d w# f, A
- server.handleClient();6 b5 U X; L/ q4 S& z
- delay(1);( r) [) Z5 {. N. }. K' F
- }3 ~: L6 i2 R2 y% }) }! b; I1 b5 [
- String doGet(String url){
7 c% Q, A# _1 @: X$ d - if ((WiFiMulti.run() == WL_CONNECTED)) {% o7 J# w4 Z3 d' G& b' s: O
- HTTPClient http;
: k% Y' ^8 a# V ?/ Y - Serial.println("[HTTP] begin...");' y ^; M; k, W/ s1 q0 J5 ~
- if (url.startsWith("https")) {3 j# ?5 x w' l6 i1 W6 e
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");5 {$ d( g e- L8 w7 ~
- } else {
* f8 ?0 X/ R$ V: o: O0 U - http.begin(url);
; S3 ~$ s& X9 N, l% s3 B% ~ - }
$ `' s/ U$ T C0 B8 _ - Serial.println("[HTTP] GET...");; T4 [7 U" L! h: d/ z
- int httpCode = http.GET();
! l6 H- R- v; g# M9 Y - if (httpCode > 0) {% _' @, I& h! e, `6 L0 l
- Serial.printf("[HTTP] code: %d\n", httpCode);7 l$ O. `: P& O* L1 x- r
- if (httpCode == HTTP_CODE_OK) {, P& C2 Z, x3 `! I7 t
- String payload = http.getString();
8 Y/ N/ |6 c* F4 {% x# B+ Z+ ^5 [ - Serial.println(payload);- `! Q' Q- t' w
- Serial.print("\r\n");' v! g% m$ M; e9 _
- return payload;' ^; \( B; q5 } J
- }
* w- k7 k. t" M- w& l - } else {
H: X4 T5 ?0 m) F \, |( T' T - Serial.printf("[HTTP] GET... failed, error: %s\n",- o- x$ C4 q' I
- http.errorToString(httpCode).c_str());
" w7 v l; v6 O8 ?* n - }
! T: y3 q4 Y {, }$ q7 \" G& k3 [ - http.end();
8 h; S3 o; F# K" s0 J5 w& D - return "";
& m# ^: }8 Q. ?! Z: K - }
% T* q* l# z) G/ l9 o6 a7 L4 n - }) x3 k4 f2 h; @
- void mainAction() {
6 G; ^ L$ K. Q) U, d1 t6 _0 I! K - // 发送请求
5 ?3 J+ J8 v3 g6 s% ~ - doGet("http://google.cn");
" W5 c0 ? o0 R0 V% H# ~ - }+ \ N8 \' M; [% D# h: [4 y
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