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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)
; w' @0 O( w' w0 a7 W% }1 v* p- #include <ESP8266HTTPClient.h>
- K+ T; V. G |9 K - #include <ESP8266WiFi.h>5 m3 V; [+ E H" [
- #include <ESP8266WiFiMulti.h>
B- O. k) T/ X* ~1 m6 d - #include <ESP8266WebServer.h>. i- N8 r3 e% r; }: p
- #include <arduino.h>
5 R. \8 R7 S- h$ a - ESP8266WiFiMulti WiFiMulti;
" A& \9 C& X8 K. K& [ - ESP8266WebServer server(80);$ r L7 v8 D. j
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";( h! G" T9 V5 l# I* ]1 \$ v
- ADC_MODE(ADC_VCC);
9 n& e' x" x, g - void setup() {/ }0 v0 V' k1 f% H
- Serial.begin(115200);: e/ ]; ] O4 x K" q& \
- Serial.print("\r\n\n");4 {' Y( k2 S) A* r4 Y2 F# h' P9 f& U& T
- pinMode(2,OUTPUT);$ q( P0 J9 A; A
- // WIFI
2 T# G( m+ L+ N" J - WiFi.mode(WIFI_STA);
! K7 H. w. b& g, ]2 D5 Y7 p - WiFi.hostname("Sparkle");6 k& ~$ @: S }$ W! V# D
- WiFiMulti.addAP("wifi ssid", "wifi password");4 l% h/ h; }$ J) X- v4 a
- int tryNum = 15;
, \' [- h) R3 ?; {0 V3 N# E - Serial.print("Connect WiFi");2 d9 s: g: M& P; n' i4 t) S
- while (WiFiMulti.run() != WL_CONNECTED) {
6 z. Y! m& z) Q - digitalWrite(2,0);: l6 V$ w [5 @, I' c" o. J
- delay(200);) g" F. b: y3 r- J3 d: _
- digitalWrite(2,1); J! Y8 f. ~" U$ s/ g6 ^
- delay(300);' N$ l. z. U& U w+ I
- Serial.print(".");# {5 y \) e4 @" k
- tryNum--;
* d+ ^/ H/ N7 V - if (tryNum == 0) {
% c* q$ w5 Y6 G0 d; i - // 1min
, ~( S; t3 i k4 |3 I" Z4 Q - // ESP.deepSleep(60e6);1 W* o$ L3 b; s
- ESP.deepSleep(0);
/ c+ |5 v5 T6 t0 s4 Z, j2 w5 t9 f - }8 ]1 M7 z! U. a# x% {* L- s+ h
- }4 O c8 M% c9 g; J
- Serial.print("\r\n");# s0 `0 i2 W' g/ }/ \+ w+ j+ B
- digitalWrite(2,1);
K+ N. l2 q+ v0 o - Serial.print("IP address : ");
) l- {$ O) |& Z* [" e1 R w - Serial.println(WiFi.localIP());$ l5 l& w) q2 V4 a5 \: j# C
- server.on("/", HTTP_GET, [](){
- a: W, J' k: `8 k - server.sendHeader("Connection", "close");( h2 D2 j+ r: {( T" n7 y
- server.send(200, "text/html", serverIndex);
! }, g+ R9 h7 U. @ - });
" Z' o' g, c/ l% t7 ^2 b; Z - server.on("/update", HTTP_POST, [](){. N8 A* c* x: O% G7 ~. X
- server.sendHeader("Connection", "close");
& l" S! b# z9 |% \: w% f" R& c2 { - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
5 ? _/ U. n9 k3 K4 u9 V" e4 a) H - ESP.restart();
3 p% ^& J& o3 K - },[](){
0 d, B# ]* ]& H; {+ `& g X3 a& c - HTTPUpload& upload = server.upload();- e, b" s0 K6 s: z k* c
- if(upload.status == UPLOAD_FILE_START){
& U7 w: Q7 [/ [2 |; Q* ^! Z - Serial.setDebugOutput(true);. N6 _+ j0 q. D7 P! Q7 n
- Serial.printf("Update: %s\n", upload.filename.c_str());
: E% ~" O5 c0 Q a' ^* C/ W/ T - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;: b' `$ H2 R. ?7 f% N# w
- if(!Update.begin(maxSketchSpace)){
( V9 p; p1 {6 K8 E' m9 _ - Update.printError(Serial);7 L: s/ w+ V3 a S* Y- t0 i$ @# t
- }
& H. b; r3 S# C - } else if(upload.status == UPLOAD_FILE_WRITE){3 j, V1 H- w) T9 Q
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){7 Q/ Q! K; d5 U4 {7 b3 {9 y
- Update.printError(Serial);, Z- Q3 W3 i( Q) P# |" [
- }
+ f6 L$ G! x9 R8 R( F s - } else if(upload.status == UPLOAD_FILE_END){
g/ ]' O3 v2 g - if(Update.end(true)){
0 a t% R2 e8 p6 s/ x) ` - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
9 w8 E1 ~$ ^9 b% ?2 c; P' L - } else {
! F! C+ B7 n F9 P - Update.printError(Serial);1 Z7 F( r8 l/ }* q5 ?
- }
% Q# h. `; P4 F7 s - Serial.setDebugOutput(false);: J- T7 ?/ \. ~3 i* h
- } a* z* t& s; R( Q! i
- yield();' h/ y6 W0 }% u( U% ^. j
- });
/ ?7 Q0 u4 u# F - " m7 F7 i2 a$ [& w- p8 m* M
- digitalWrite(2,0);
( T! v# A7 R9 Z5 r$ X8 Y- D. |; ^ - mainAction();9 R# y- W- {: b9 G3 k- F1 ^# K
- if (digitalRead(0)){/ w2 w t7 S/ p
- ESP.deepSleep(0);
1 N" |0 k' l# ] - } else {
. B& X5 j2 S+ U3 J - server.begin();
1 L% X6 G+ G, y - }
a2 }- O! ?8 g) I8 { - }
0 H9 G9 l9 B1 W" g0 M - void loop() {3 M1 w9 {2 I0 T
- server.handleClient();
9 I+ I a, }, ~ - delay(1);9 N6 x Y% V1 p" O
- }6 S( ?" K8 m' a) b
- String doGet(String url){ f5 e% ?) V+ ~. H+ }( `1 A
- if ((WiFiMulti.run() == WL_CONNECTED)) {/ p" Q% O9 K# F' X1 Z
- HTTPClient http;. w. |9 Q; \& _6 i3 h
- Serial.println("[HTTP] begin...");
3 ~' j8 B& r2 x0 L/ @* s - if (url.startsWith("https")) {
. [0 ^5 n. Q" k9 n - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
7 Q) n4 p% Z {, A - } else {# n) @* v" s, h: `
- http.begin(url);
$ s* L5 n3 t) {4 O& C3 Y5 I2 L - }
' i$ ^& N! I9 [$ P/ P0 _' N- J - Serial.println("[HTTP] GET...");- A: P+ d# @2 t8 U% O5 Y* k
- int httpCode = http.GET();9 {2 j( j( N* \8 w' g2 O
- if (httpCode > 0) {
8 a$ ?+ g+ Q# ?4 ~ - Serial.printf("[HTTP] code: %d\n", httpCode);
4 @4 _ T/ |* f - if (httpCode == HTTP_CODE_OK) {: W0 p0 k0 k- ~. u) `5 |1 c
- String payload = http.getString();3 j$ Y; k- L: S( B8 _4 f6 `
- Serial.println(payload);3 P. w' [$ q3 `: n0 z
- Serial.print("\r\n");3 x) s& i9 D; b) j% F
- return payload;
7 `, \% `) M: ]( T. ]$ U: H - }
8 R) o: E+ A- f6 @8 m1 v - } else {4 N1 a" O5 ~' [/ f1 `
- Serial.printf("[HTTP] GET... failed, error: %s\n",7 ]* b/ b# I$ G _: X7 k
- http.errorToString(httpCode).c_str());
]1 j# Y* e+ Z0 y - }
( h- W0 N4 ?# r1 _- N - http.end();; m1 {' y. o6 ^7 A
- return "";
' ~( N$ e9 F* h! W: u2 s5 h - }
" t. |; ~* _' [) u1 D - }
! Y. H9 R3 P Y& ~5 P, Y! v - void mainAction() {" U. l6 {/ k) W! f; ]6 {7 `. J3 Z; L
- // 发送请求
/ G* L8 Y: Z4 e9 o4 | - doGet("http://google.cn");9 K- _5 E3 }( c
- }' D& w0 ]( ^) j7 M) _- k
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