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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)- x H+ ~9 x, X4 ]7 m* k% C
- #include <ESP8266HTTPClient.h> C/ C, k3 L' W
- #include <ESP8266WiFi.h>" B% `; e+ o' ^& ]
- #include <ESP8266WiFiMulti.h>8 Y u4 L, O$ l& b
- #include <ESP8266WebServer.h>7 h9 g1 J& `8 L( J* W$ s0 n
- #include <arduino.h>& `8 J& ?0 e7 D6 E$ v7 O
- ESP8266WiFiMulti WiFiMulti;( j5 a3 X0 I r: r% k
- ESP8266WebServer server(80);$ U- G( h. \$ ?6 u+ T
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
! l5 V( a$ ~( x+ ]& Z0 } - ADC_MODE(ADC_VCC);
" i4 ~, Z6 C* f/ _0 }+ d - void setup() {
( T4 F0 h+ k" l$ n - Serial.begin(115200);
; K- m+ [) T' X6 g0 s% q - Serial.print("\r\n\n");, L0 m6 j: W# _2 x, ]5 } e4 }
- pinMode(2,OUTPUT);8 \; l8 r# O8 T, h W1 R: b
- // WIFI
5 ?* A- f/ C9 D7 x1 r - WiFi.mode(WIFI_STA);
/ [7 ]7 X5 D% F& p3 r [ U - WiFi.hostname("Sparkle");" m# u' x r, u8 ]
- WiFiMulti.addAP("wifi ssid", "wifi password");
5 R7 G! T2 _/ a) r - int tryNum = 15;, H* B5 P+ Y2 t
- Serial.print("Connect WiFi");& ^+ v2 t8 i3 }4 l0 y
- while (WiFiMulti.run() != WL_CONNECTED) {
$ O. D# ~" _/ n3 s: l0 ^4 K - digitalWrite(2,0);. [) x2 L1 Z, g+ e+ ~0 j, D! _
- delay(200);
: F% ~1 E8 B, d8 u* [ - digitalWrite(2,1);
/ ?4 H2 d$ C0 w4 M; d- v5 D - delay(300);7 {% L. i" r/ [
- Serial.print(".");2 m+ }8 S: j$ D; o+ U6 g; f# f$ m
- tryNum--;# U0 A7 b3 u! A, B4 ]4 S' s
- if (tryNum == 0) {
" o; _, D7 H' `3 Y - // 1min
9 J& l! w; g$ o; C$ c - // ESP.deepSleep(60e6);! Y9 ~5 O u# c k( \" p1 s
- ESP.deepSleep(0);
5 z- `$ F8 F9 g; Y. H: e - }& e' j3 P# j O9 _* q' A- Q# O
- }
6 \: U; G i4 j' {8 Z/ I - Serial.print("\r\n");/ A4 g" i2 r1 B9 ?) g3 V$ I, A
- digitalWrite(2,1);
3 x3 {, E8 J7 I6 A' ?- {/ [0 d - Serial.print("IP address : ");
3 ^9 M0 S ^$ b: y6 f, r; e. B - Serial.println(WiFi.localIP());. ]% I% s/ a M" O6 f* j( V4 _
- server.on("/", HTTP_GET, [](){
5 x) I' R+ o# |( `; @ - server.sendHeader("Connection", "close");8 d# Z" c; i7 s$ E+ h
- server.send(200, "text/html", serverIndex);1 s4 O; S2 z8 k- t6 q. T2 u3 U
- });. L9 o4 ?. K. k
- server.on("/update", HTTP_POST, [](){
- n& u: t. h+ b* Q8 j - server.sendHeader("Connection", "close");3 u; }: f) `6 t7 f
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
9 a7 g ~% W! L+ L; T: Q* @! g- k - ESP.restart();7 |' r' x+ F' P1 P' q
- },[](){4 C- Q9 e' \- L s- F- T, D
- HTTPUpload& upload = server.upload();% r3 |5 l) ~$ j( f1 \6 `
- if(upload.status == UPLOAD_FILE_START){) v; F- Y% e; U! e
- Serial.setDebugOutput(true);
# |/ z9 d& H/ h8 G& ?; T3 X, F - Serial.printf("Update: %s\n", upload.filename.c_str());
a8 L2 y, p# K4 C, f( X; X8 H0 u - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;, V8 r5 f, x. _+ P4 S& x+ V
- if(!Update.begin(maxSketchSpace)){& R9 P3 q! }+ p4 k
- Update.printError(Serial);
7 k Z. o; T* n. |# G, i - }
. X9 a4 g) L* ~% v - } else if(upload.status == UPLOAD_FILE_WRITE){* d7 c- x2 J- i5 j: F. D0 S$ m/ q
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){1 K/ c2 K' W0 V2 M0 I' X. h' m
- Update.printError(Serial);
& v: N" U. u& j* o* Z0 o - }) w+ E$ w% ?2 r
- } else if(upload.status == UPLOAD_FILE_END){, z. j$ H- m( F' ^: U
- if(Update.end(true)){; U0 f6 ]$ F0 D0 L+ {2 L6 p
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
0 j* @- }: y$ z - } else {0 i, U5 ^# A; O% z
- Update.printError(Serial);
) H; M1 G8 e% C2 c% L4 V/ p3 s - }% ^, }, H- |5 T, m& x$ W* \" C$ \; ]
- Serial.setDebugOutput(false);. {5 J. r( W; X) W0 w" W- S
- }
1 D4 a/ [/ N) ?. D - yield();0 M: l( R. J3 }7 a9 r5 f. z
- });+ j. D6 b& q' [! |/ \) p: v5 ^
- 4 W8 G, j3 t: O( E, z. e3 ]
- digitalWrite(2,0);
* S* F/ j, o8 |( y' n: G - mainAction();
5 D2 C7 `6 M5 ^# I( Z' \; F - if (digitalRead(0)){4 N, M$ q2 C* v5 N; ^, L s
- ESP.deepSleep(0);+ k# m, M: ?* Q- ~% ^: y; `
- } else {
0 g$ r/ t- B( @/ A2 N$ | - server.begin();3 L2 X$ C0 ?% V6 |! v
- }
2 g- S+ C/ S) J5 i% v4 W, ? - }
t' ?/ H3 i. y) O - void loop() {
/ c/ W0 j! ]9 l y" Y7 h - server.handleClient();
& Y. e. [$ ^! u- R" q- J - delay(1);6 c8 [/ o) o4 E u2 N
- }
' `" V, K# ~1 X3 q9 V1 d9 \; |+ ~2 W - String doGet(String url){' z Q h; L0 Q: }
- if ((WiFiMulti.run() == WL_CONNECTED)) {; [4 m5 T% W ? s
- HTTPClient http;
( b+ ]" O( _+ |2 e( F9 p - Serial.println("[HTTP] begin...");
- q, ]) I* A& c" @- } - if (url.startsWith("https")) {5 q+ R! \( @+ G( m8 S
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");# d& v' F- v5 V4 e& n# U
- } else {, P" e3 |* \0 d) z
- http.begin(url);
0 D3 F2 f4 s+ v4 U. L" { - }
/ [! {' X( l L" _5 c( y) f2 V - Serial.println("[HTTP] GET...");: q, D S4 J. D! {5 Y
- int httpCode = http.GET();
, B' e1 z+ x- ^* e7 C+ G - if (httpCode > 0) {
. ~9 h% M4 `4 A- ]& W& [ - Serial.printf("[HTTP] code: %d\n", httpCode);
8 ]4 n9 R: v- V9 C1 b - if (httpCode == HTTP_CODE_OK) {
8 v: F1 R& F$ y% M \+ S - String payload = http.getString();
8 s5 j9 Q- M8 V9 V - Serial.println(payload);1 F! f# ~8 T( W# J+ S
- Serial.print("\r\n");/ t! H9 {5 e- [. d
- return payload; H( [4 b9 Y3 _. I# |8 t; q7 S
- }' i7 w; s; _. _: f) r4 h: A, J- T
- } else {6 N U# \: e* r
- Serial.printf("[HTTP] GET... failed, error: %s\n",
0 p: C$ N1 T+ ? - http.errorToString(httpCode).c_str());% V$ [0 l! ]) r/ L/ ^# f5 K$ l
- }( M) S' O6 J6 r$ z$ {2 ]$ A, B
- http.end();8 i* `" [: F7 P3 D5 s& O9 ~
- return "";
4 C ~7 p V5 p- H - }) \* w# j! R; q2 F5 x) Y
- }
v) g0 u3 s3 X; R8 k - void mainAction() {% U6 Z$ G5 x( W1 i' n& @
- // 发送请求
( b0 B' Y( R _ - doGet("http://google.cn");
1 \. `$ x k/ j9 c& R( y - }. q5 d6 `7 m$ X% X
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